218k views
3 votes
Suppose that the probability a seed will germinate is 85%. What is the probability that 7 of these seeds will germinate when 10 are planted?

a.0.1298
b.0.385
c.0.12
d.0.141

User Baruch
by
6.0k points

2 Answers

3 votes

Answer:A

Explanation:

User Ryan Dines
by
6.8k points
3 votes
total number of outcomes of 7 from 10 = 10*9*8 / 3*2*1 = 120
probability of each outcoe is 0.85^7* (0.15)^(3) = 0.0010819

Required probability = 120 * 0.0010819 = 0.1298
User McGuile
by
5.6k points