APU MATH120 Week 4 Forum Latest 2020 MAY

MATH120 Introduction to Statistics

Week 4 Forum

Binomial

Review the criteria for a binomial in the announcements before selecting your problem.

Example

a) On this example we will examine the probability a couple who has 8 children and has exactly 5 boys.

b) Next we will look at the probability that they have more than 5 boys.

c) Finally we will look at the probability that they have at most 5 boys.

Assume a .5 chance of having a boy.

Solution can be solved using excel.

a) On this example we will examine the probability a couple who has 8 children has exactly 5 boys.

Type this in an excel cell

=binom.dist(5,8,.5,False)

and then hit enter

.21875 would be the answer

b) Next we will look at the probability that they have more than 5 boys.

Type this in an excel cell

=1-binom.dist(5,8,.5,True)

and then hit enter

.144531 would be the answer

c) Finally we will look at the probability that they have at most 5 boys.

Assume a .5 chance of having a boy.

Type this  in an excel cell

=binom.dist(5,8,.5,True)

and hit enter

.855469 would be the answer

Instructions: For your post you will make up a problem similar to this example.  Try to have at least 3 scenarios. You will not solve your own problem.

Then you will answer 2 classmates problems. Copy the question, type the excel formulas in an excel spreadsheet and attach it to your post so your professor and classmates can check your work. Then write a brief summary after the problem you copied in your post.