Question 15 - CBSE Class 10 Sample Paper for 2020 Boards - Maths Standard - Solutions of Sample Papers for Class 10 Boards
Last updated at May 29, 2023 by Teachoo
A number is chosen at random from the numbers −5, −4, −3, −2, −1, 0, 1, 2, 3, 4, 5. Then the probability that square of this number is less than or equal to 1 is _____________
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Question 15 A number is chosen at random from the numbers −5, −4, −3, −2, −1, 0, 1, 2, 3, 4, 5. Then the probability that square of this number is less than or equal to 1 is _____________
Numbers are −5, −4, −3, −2, −1, 0, 1, 2, 3, 4, 5
Total Numbers = 11
Now,
Square of these numbers are (−5)2, (−4)2, (−3)2, (−2)2, (−1)2, 02, 12, 22, 32, 42, 52
i.e. 25, 16, 9, 4, 1, 0, 1, 4, 9, 16, 25
Total numbers whose square is less than or equal to 1 = 3
∴ Required Probability = 𝟑/𝟏𝟏
Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.
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