Math Chapter Wise question with answer

Q01 A random variable χ χ χ has the probability distribution χ χ 1 2 3 4 5 6 7 8 P(χ χ χ) 0.15 0.23 0.12 0.10 0.20 0.08... English · EMRS PGT-2023 Q02 If the probability of hitting a target by a shooter in any shot is 1 3, then the minimum number of independent shot... English · EMRS PGT-2023 Q03 Two integers are selected at random from the set {1, 2, 3, 4,..., 11}. Given that the sum of selected numbers is ev... English · EMRS PGT-2023 Q04 If the standard deviation of the numbers 2, 3, a and 11 is 3.5 then which of the following is true? English · EMRS PGT-2023 Q05 If the mean deviations about the median of the numbers a, 2a, 3a,..., 50a is 50, then |a| equals: English · EMRS PGT-2023 Q06 The mean of the probability distribution of the number obtained on throwing a die having written 1 on three faces,... English · EMRS TGT-2023