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Chapter 6: Q. 81 (page 358)

Baby elk Refer to Exercise 77 . Use the binomial probability formula to find P(X = 4) . Interpret this value.

Short Answer

Expert verified

The chance of picking 4 out of 7 elks who live to be children is23.04%

Step by step solution

01

Step 1:Given Information

The total number of trials n=7

The likelihood of success p=0.44

The binomial probability is calculated using the following formula:

PX=r=nCr×pr×1−pn−r

Furthermore,

The number of successes is r in this case.

The number of trials is n.

The chance of success is denoted by p.

02

Step 2:Simplificaiton

PX=4can be computed as follows:

PX=4=C47×0.444×0.447-4=0.2304

As a result, the necessary probability is 0.2304

The chance of picking 4 out of 7 elks who live to be children is 23.04%

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