Math Chapter Wise question with answer

Q01 Let X and Y be two independent N (0, 1) random variables. Find Cov (X + 3Y, 5X – 2Y). English · JSSC PGT 2018 Q02 A single letter is selected at random from the word 'PROBABILITY'. The probability that it is a vowel is: English · KVS TGT 2017 Q03 One letter is drawn at random from the letters of the word 'STATISTICS' and another letter is drawn from the letter... English · NVS PGT 10-06-2019 Q04 Let X has probability density function f(x) = () [ ] ∈ 2 0.75 1- x, x -1,1 0, otherwise What is the probability of... English · Bihar (TRE 1.0) -2023 Q05 Let x1, x2,..., xn be 'n' observation such that ∑ 2 i x = 400 and ∑ i x = 80, Then a possible value of 'n' among th... English · Haryana PGT 2019 Q06 To create a code for each employee in a Company, 5 letters (A to E) and 10 digits (0 to 9) can be used. A Code cons... English · DSE TGT 2019