Subject
Bank Exam
Topic
Dutch-Bangla Bank Ltd. - Assistant Officer - 2017
S = {16, 9, 23, X, 13, 16}
In list S, the mean and median and mode are all equal to one another. What is the value of X ?
S = {16, 9, 23, X, 13, 16} In list S, the mean and median and mode are all equal to one another. What is the value of X ?
ক)
15খ)
25গ)
19ঘ)
36ঙ)
None of theseExplanation
প্রশ্নে বলা হচ্ছে যে, S = {16, 9, 23, X, 13, 16} এই সেটের মধ্যের উপাদানগুলোর গড়, মধ্যক ও প্রচুরক সমান হলে X এর মান কত ? পাঠক, দেখুন X এর মান যদি 19 হয় তবে, S = {16, 9, 23, X, 13, 16} ফলে এই সেটের উপাদানগুলোর গড় হবে = = 16. মধ্যক নির্ণয়ের জন্য আমাদেরকে সেটটিকে সংখ্যাগুলোর ক্রমানুসারে সাজাতে হবে, অর্থাৎ S = {16, 9, 23, X, 13, 16} মধ্যক = = 16 এবং আমরা জানি, কোনো সেটে সবচেয়ে বেশি যে সংখ্যা থাকে সেটিই প্রচুরক । তাই সেটে 16 আছে বেশি সংখ্যক বার । তাই প্রচুরক 16. অতএব, দেখা যাচ্ছে যে, X = 19 হলে গড়, মধ্যক এবং প্রচুরক সমান হচ্ছে । তাই উত্তর c).Related questions
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