Probability Question

Question

+1

1502

1

+15

Ten slips of paper labeled from 1 to 10 are placed in a hat. The first slip of paper is not replaced before selecting the second slip of paper.

What is the probability of selecting a number less than 2 then a number greater than 7?

A. 3/50

B. 1/15

C. 3/100

D. 1/30

kalanee Feb 6, 2018

CPhill · Answer 1 · 2018-02-06T10:31:35

P(number < 2 on first draw) = 1/10

P ( number > 7 on second draw given that a number < 2 was selected first) = 3/9

So...the total probability is (1/10) * ( 3/9) = 3/90 = 1 / 30