Probability - Online Test
Q1. If E is any event associated with an experiment, then
Answer : Option D
Explaination / Solution:
No Explaination.
Q2. A and B toss 3 coins. The probability that they both obtain the same number of heads is
Answer : Option D
Explaination / Solution:
No Explaination.
Q3. Three identical dice are rolled. The probability that the same number will appear on each of them is
Answer : Option D
Explaination / Solution:
No Explaination.
Q4. Suppose n (≥3) persons are sitting in a row. Two of them are selected at random. The probability that they are not together is
Answer : Option D
Explaination / Solution:
No Explaination.
Q5. One ticket is selected at random from 100 tickets numbered 00, 01, 02…, 99. Suppose S and T are the sum and product of the digits of the number on the ticket, then the probability of getting S = 7 and T = 0 is
Answer : Option A
Explaination / Solution:
No Explaination.
Q6. A box contains 100 eggs out of which 4 are rotten. Two eggs are taken out together. If one of them is found to be good, the probability that other is also is
Answer : Option A
Explaination / Solution:
No Explaination.
Q7. A digit is selected at random from either of the two sets { 1, 2, 3, 4, 5, 6, 7, 8, 9} and {1, 2, 3, 4, 5, 6, 7, 8, 9{. What is the chance that the sum of the digits selected is 10 ?
Answer : Option D
Explaination / Solution:
No Explaination.
Q8. If two squares are chosen at random on a chess board, the probability that they have a side common is
Answer : Option A
Explaination / Solution:
No Explaination.
Q9. A coin tail on both sides is tossed twice. The probability of getting ‘a head’ is
Answer : Option D
Explaination / Solution:
No Explaination.
Q10. The chance that an event E ‘occurs’ or does not occur’s
Answer : Option A
Explaination / Solution:
No Explaination.
