SOLUTION: In the past year, 13% of businesses have eliminated jobs. If 4 businesses are selected at random, find the probability that at least 2 have eliminated jobs during the last year.
Algebra ->
Probability-and-statistics
-> SOLUTION: In the past year, 13% of businesses have eliminated jobs. If 4 businesses are selected at random, find the probability that at least 2 have eliminated jobs during the last year.
Log On
Question 1069151: In the past year, 13% of businesses have eliminated jobs. If 4 businesses are selected at random, find the probability that at least 2 have eliminated jobs during the last year. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! probability all 4 have: .13^4=0.0003
probability that 3 have: 4*.13^3*.87=0.0076
probability that 2 have 6*0.13^2*0.87^2=0.0767
that sum is 0.0846. ANSWER
check
probability 1 has is 4*.87^3*.13=0.3424
probability 0 have is .87^4=0.5729