{"id":1595,"date":"2024-03-05T15:19:50","date_gmt":"2024-03-05T15:19:50","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=1595"},"modified":"2024-03-05T15:19:50","modified_gmt":"2024-03-05T15:19:50","slug":"the-following-table-shows-the-distribution-of-life-time-of-350-radio-tubes-lifetime-in-hrs-300-400-400-500-500-600-600-700-no-of-tubes-6-18-73-165-lifetime-in-hrs-700-800-800-900-900-1000-no-of-tu","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-following-table-shows-the-distribution-of-life-time-of-350-radio-tubes-lifetime-in-hrs-300-400-400-500-500-600-600-700-no-of-tubes-6-18-73-165-lifetime-in-hrs-700-800-800-900-900-1000-no-of-tu\/","title":{"rendered":"The following table shows the distribution of life time of 350 radio tubes : Lifetime in hrs 300-400 400-500 500-600 600-700 No. of tubes 6 18 73 165 Lifetime in hrs 700-800 800-900 900-1000 No. of tubes 62 22 4Assuming that class frequencies are evenly distributed within the corresponding classes, find the percentage of tubes having life time between 650 hours and 850 hours"},"content":{"rendered":"<p>\r\n    <!-- Check if it's an AMP page -->\r\n            <!-- Non-AMP version -->\r\n        <div class=\"mcq-container\" data-quiz-id=\"quizState_6a987b60b73c6\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    145 hours                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    150 hours                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"true\">\r\n                    156 hours                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    161 hours                <\/div>\r\n                            \r\n            <!-- Feedback messages for non-AMP -->\r\n            <div class=\"feedback\" data-feedback=\"wrong\">Answer is Right!<\/div>\r\n            <div class=\"feedback\" data-feedback=\"right\">Answer is Wrong!<\/div>\r\n        <\/div>\r\n\r\n        <script>\r\n        document.addEventListener('DOMContentLoaded', function () {\r\n            var containers = document.querySelectorAll('.mcq-container');\r\n\r\n            containers.forEach(function(container) {\r\n                var options = container.querySelectorAll('.option');\r\n                var feedbackSelect = container.querySelector('[data-feedback=\"select\"]');\r\n                var feedbackWrong = container.querySelector('[data-feedback=\"wrong\"]');\r\n                var feedbackRight = container.querySelector('[data-feedback=\"right\"]');\r\n\r\n                options.forEach(function(option) {\r\n                    option.addEventListener('click', function() {\r\n                        var selectedOption = option.getAttribute('data-option-key');\r\n                        var isCorrect = option.getAttribute('data-is-correct') === 'true';\r\n\r\n                        \/\/ Remove previous selections\r\n                        options.forEach(function(opt) {\r\n                            opt.classList.remove('correct', 'incorrect');\r\n                        });\r\n\r\n                        \/\/ Add the correct\/incorrect class\r\n                        if (isCorrect) {\r\n                            option.classList.add('correct');\r\n                            feedbackRight.hidden = false;\r\n                            feedbackWrong.hidden = true;\r\n                        } else {\r\n                            option.classList.add('incorrect');\r\n                            feedbackRight.hidden = true;\r\n                            feedbackWrong.hidden = false;\r\n                        }\r\n\r\n                        \/\/ Hide select feedback\r\n                        feedbackSelect.hidden = true;\r\n                    });\r\n                });\r\n            });\r\n        });\r\n        <\/script>\r\n    \r\n    <!--more--><\/p>\n<p>The correct answer is (c).<\/p>\n<p>The total number of tubes is 350. <div class=\"youtube-subscribe-container\">\r\n        <a href=\"https:\/\/www.youtube.com\/channel\/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1\" target=\"_blank\" class=\"youtube-subscribe-button\">\r\n            <span class=\"youtube-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 <div class=\"telegram-channel-container\">\r\n        <a href=\"https:\/\/t.me\/pscnotes2025\" target=\"_blank\" class=\"telegram-channel-button\">\r\n            <span class=\"telegram-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 496 512\">\r\n                    <path fill=\"white\" d=\"M248,8C111,8,0,119,0,256s111,248,248,248s248-111,248-248S385,8,248,8z M362,177L320,367c-3,14-10,18-20,14l-56-41l-27,26 c-3,3-5,5-10,5l4-63L323,196c5-5-1-7-8-3l-98,62l-42-13c-9-3-10-9,2-14l162-63C351,160,365,164,362,177z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Join Our Telegram Channel\r\n        <\/a>\r\n    <\/div> 0 576 512\">\r\n                    <path d=\"M549.7 124.1c-6.3-23.7-24.8-42.3-48.3-48.6C458.8 64 288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> The number of tubes with lifetime between 650 and 850 hours is 165 + 62 = 227. The percentage of tubes with lifetime between 650 and 850 hours is 227\/350 = 64.86%, which is approximately 65%.<\/p>\n<p>Option (a) is incorrect because it is the average lifetime of all the tubes. Option (b) is incorrect because it is the average lifetime of the tubes with lifetime between 650 and 850 hours. Option (d) is incorrect because it is the lifetime of the tube with the 64th highest lifetime.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Subscribe on YouTube<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The following table shows the distribution of life time of 350 radio tubes : Lifetime in hrs 300-400 400-500 500-600 600-700 No. of tubes 6 18 73 165 Lifetime in hrs 700-800 800-900 900-1000 No. of tubes 62 22 4Assuming that class frequencies are evenly distributed within the corresponding classes, find the percentage of tubes having life time between 650 hours and 850 hours<\/title>\n<meta name=\"description\" content=\"The total number of tubes is 350. The number of tubes with lifetime between 650 and 850 hours is 165 + 62 = 227. The percentage of tubes with lifetime between 650 and 850 hours is 227\/350 = 64.86%, which is approximately 65%.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/the-following-table-shows-the-distribution-of-life-time-of-350-radio-tubes-lifetime-in-hrs-300-400-400-500-500-600-600-700-no-of-tubes-6-18-73-165-lifetime-in-hrs-700-800-800-900-900-1000-no-of-tu\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The following table shows the distribution of life time of 350 radio tubes : Lifetime in hrs 300-400 400-500 500-600 600-700 No. of tubes 6 18 73 165 Lifetime in hrs 700-800 800-900 900-1000 No. of tubes 62 22 4Assuming that class frequencies are evenly distributed within the corresponding classes, find the percentage of tubes having life time between 650 hours and 850 hours\" \/>\n<meta property=\"og:description\" content=\"The total number of tubes is 350. The number of tubes with lifetime between 650 and 850 hours is 165 + 62 = 227. The percentage of tubes with lifetime between 650 and 850 hours is 227\/350 = 64.86%, which is approximately 65%.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/the-following-table-shows-the-distribution-of-life-time-of-350-radio-tubes-lifetime-in-hrs-300-400-400-500-500-600-600-700-no-of-tubes-6-18-73-165-lifetime-in-hrs-700-800-800-900-900-1000-no-of-tu\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-05T15:19:50+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"The following table shows the distribution of life time of 350 radio tubes : Lifetime in hrs 300-400 400-500 500-600 600-700 No. of tubes 6 18 73 165 Lifetime in hrs 700-800 800-900 900-1000 No. of tubes 62 22 4Assuming that class frequencies are evenly distributed within the corresponding classes, find the percentage of tubes having life time between 650 hours and 850 hours","description":"The total number of tubes is 350. The number of tubes with lifetime between 650 and 850 hours is 165 + 62 = 227. The percentage of tubes with lifetime between 650 and 850 hours is 227\/350 = 64.86%, which is approximately 65%.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/the-following-table-shows-the-distribution-of-life-time-of-350-radio-tubes-lifetime-in-hrs-300-400-400-500-500-600-600-700-no-of-tubes-6-18-73-165-lifetime-in-hrs-700-800-800-900-900-1000-no-of-tu\/","og_locale":"en_US","og_type":"article","og_title":"The following table shows the distribution of life time of 350 radio tubes : Lifetime in hrs 300-400 400-500 500-600 600-700 No. of tubes 6 18 73 165 Lifetime in hrs 700-800 800-900 900-1000 No. of tubes 62 22 4Assuming that class frequencies are evenly distributed within the corresponding classes, find the percentage of tubes having life time between 650 hours and 850 hours","og_description":"The total number of tubes is 350. The number of tubes with lifetime between 650 and 850 hours is 165 + 62 = 227. The percentage of tubes with lifetime between 650 and 850 hours is 227\/350 = 64.86%, which is approximately 65%.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/the-following-table-shows-the-distribution-of-life-time-of-350-radio-tubes-lifetime-in-hrs-300-400-400-500-500-600-600-700-no-of-tubes-6-18-73-165-lifetime-in-hrs-700-800-800-900-900-1000-no-of-tu\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2024-03-05T15:19:50+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/the-following-table-shows-the-distribution-of-life-time-of-350-radio-tubes-lifetime-in-hrs-300-400-400-500-500-600-600-700-no-of-tubes-6-18-73-165-lifetime-in-hrs-700-800-800-900-900-1000-no-of-tu\/","url":"https:\/\/exam.pscnotes.com\/mcq\/the-following-table-shows-the-distribution-of-life-time-of-350-radio-tubes-lifetime-in-hrs-300-400-400-500-500-600-600-700-no-of-tubes-6-18-73-165-lifetime-in-hrs-700-800-800-900-900-1000-no-of-tu\/","name":"The following table shows the distribution of life time of 350 radio tubes : Lifetime in hrs 300-400 400-500 500-600 600-700 No. of tubes 6 18 73 165 Lifetime in hrs 700-800 800-900 900-1000 No. of tubes 62 22 4Assuming that class frequencies are evenly distributed within the corresponding classes, find the percentage of tubes having life time between 650 hours and 850 hours","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2024-03-05T15:19:50+00:00","dateModified":"2024-03-05T15:19:50+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The total number of tubes is 350. The number of tubes with lifetime between 650 and 850 hours is 165 + 62 = 227. The percentage of tubes with lifetime between 650 and 850 hours is 227\/350 = 64.86%, which is approximately 65%.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/the-following-table-shows-the-distribution-of-life-time-of-350-radio-tubes-lifetime-in-hrs-300-400-400-500-500-600-600-700-no-of-tubes-6-18-73-165-lifetime-in-hrs-700-800-800-900-900-1000-no-of-tu\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/the-following-table-shows-the-distribution-of-life-time-of-350-radio-tubes-lifetime-in-hrs-300-400-400-500-500-600-600-700-no-of-tubes-6-18-73-165-lifetime-in-hrs-700-800-800-900-900-1000-no-of-tu\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/the-following-table-shows-the-distribution-of-life-time-of-350-radio-tubes-lifetime-in-hrs-300-400-400-500-500-600-600-700-no-of-tubes-6-18-73-165-lifetime-in-hrs-700-800-800-900-900-1000-no-of-tu\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"mcq","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/mcq\/"},{"@type":"ListItem","position":3,"name":"statistics","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/mcq\/statistics\/"},{"@type":"ListItem","position":4,"name":"The following table shows the distribution of life time of 350 radio tubes : Lifetime in hrs 300-400 400-500 500-600 600-700 No. of tubes 6 18 73 165 Lifetime in hrs 700-800 800-900 900-1000 No. of tubes 62 22 4Assuming that class frequencies are evenly distributed within the corresponding classes, find the percentage of tubes having life time between 650 hours and 850 hours"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/d97f17072bfa490596c8f78363955d55?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/d97f17072bfa490596c8f78363955d55?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/1595"}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=1595"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/1595\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=1595"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=1595"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=1595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}