Statistics And Probability Question 128

Question: Two numbers are successively drawn from the set $ U={1,2,3,4,5,6,7,8} $ , the second being drawn without replacing the first. The number of elementary events in the sample is:

Options:

A) 64

B) 56

C) 32

D) 14

Show Answer

Answer:

Correct Answer: B

Solution:

  • [b] Required no. of elementary events $ {{=}^{8}}C_2\times 2!=56 $