Probability Quiz-1

Question 1

Time: 00:00:00
A box contains 23 red balls, 12 black balls, and 15 yellow balls. A ball is selected at random What is the probability that the ball is the non-red ball?

\frac{21}{50}

\frac{21}{50}

\frac{23}{50}

\frac{23}{50}

\frac{27}{50}

\frac{27}{50}

\frac{29}{50}

\frac{29}{50}

Question 2

Time: 00:00:00
If P(A) =0.37 ,  P(B) =0.32 , P(A∩B) = 0.11 Find P(A ∪ B)

0.38

0.38

0.58

0.58

0.68

0.68

0.78

0.78

Question 3

Time: 00:00:00
Probability of telling truth by Raj is 0.26 and the Probability of telling truth by Aman is 0.20. What is the probability they will contradict each other

0.356

0.356

0.294

0.294

0.528

0.528

0.712

0.712

Question 4

Time: 00:00:00
Abhay plays a game, there are prizes which are Numbered from 41 to 70. A prize is drawn at random. What is the probability of getting a prize which is a multiple of 3?

\frac{1}{3}

\frac{1}{3}

\frac{2}{3}

\frac{2}{3}

\frac{3}{4}

\frac{3}{4}

\frac{1}{4}

\frac{1}{4}

Question 5

Time: 00:00:00
In the year 1st January 2014 is wednesday we randomly select a date from that year what is the probability that day is Wednesday?

\frac{52}{365}

\frac{52}{365}

\frac{53}{365}

\frac{53}{365}

\frac{57}{365}

\frac{57}{365}

\frac{59}{365}

\frac{59}{365}

Question 6

Time: 00:00:00
Four digits password has to create using 4, 2, 5, and 7. what is the probability that the password is divisible by 5?

\frac{1}{3}

\frac{1}{3}

\frac{1}{4}

\frac{1}{4}

\frac{1}{5}

\frac{1}{5}

\frac{1}{7}

\frac{1}{7}

Question 7

Time: 00:00:00
In the ninth class of JPS school there are 25 boys and 15 girls. Two students are selected at random. what is the probability that 1 girl and 1 boy is selected?

\frac{75}{156}

\frac{75}{156}

\frac{76}{156}

\frac{76}{156}

\frac{35}{156}

\frac{35}{156}

\frac{37}{156}

\frac{37}{156}

Question 8

Time: 00:00:00
Two-digit number has to create using digits 3, 9, 1, and 8. If repetition is allowed. Then what is the probability that the number is divisible by 2?

1/2

1/2

1/3

1/3

1/4

1/4

1/6

1/6

Question 9

Time: 00:00:00
In a coding question there is three test case. The probability of passing of first test case is 0.22, the probability of passing of second test case is 0.2 and the probability of passing of third test case is 0.1. What is the probability that all test cases passed?

0.044

0.044

0.0044

0.0044

0.44

0.44

0.00404

0.00404

Question 10

Time: 00:00:00
There is 1 vacancy for a software engineer in a company. The probability of selection of Pulikit is 0.3 and the probability of selection of  Aman is 0.4. Both appeared for the Interview What is the probability that any one of them is selected?

0.46

0.46

0.38

0.38

0.41

0.41

0.28

0.28

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May 31, 2022