Probability, Permutation and Combination, Statistics - Online Test

30:00
1. A bag contains 5 red balls and 7 blue balls. If two balls are drawn at random without replacement, what is the probability that both balls are blue?
2. In how many ways can a committee of 4 members be selected from a group of 10 people?
3. The mean of the first 10 natural numbers is:
4. A coin is tossed three times. What is the probability of getting exactly two heads?
5. How many permutations are there of the letters in the word 'APPLE'?
6. Find the median of the following data set: 3, 7, 2, 8, 5, 9, 4.
7. Two dice are rolled simultaneously. What is the probability that the sum of the numbers shown is 7?
8. In how many ways can 5 distinct books be arranged on a shelf?
9. The mode of the data set: 2, 3, 4, 3, 5, 3, 2, 3 is:
10. A card is drawn from a standard deck of 52 cards. What is the probability that the card is a King or a Queen?

Test Results

0/0