Math Chapter Wise question with answer

Q01 Let A & B be two events with P(A)=1/2, P(B) = 1/3 and ∩ P(A B) = 1/4, then P(A/B) = _____. English · OAVS TGT 2017 Q02 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 Q03 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 Q04 A single letter is selected at random from the word 'PROBABILITY'. The probability that it is a vowel is: English · KVS TGT 2017 Q05 Let X be a random variable having Poisson distribution. If P (x=2)=3P (x=4), then standard deviation of X is- English · UPPSC Polytechnic Lecturer 2021 (I) Q06 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