Topic 1: Binomial and Two Responses

Topic 1: Binomial and Two Responses

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 your example Try to have at least 3 scenarios. You will not solve your own problem.
• Then you will answer 2 classmates problems showing your work using excel similar to the solution that was posted.

Instructions: Your initial post may not be 250 words. Please respond to at least 2 other students. Responses should be a minimum of 100 words and include direct questions.

To earn full credit for this forum, you must respond to at least two (2) of your peers and post your initial post by Thurs.

Initial Post Due: Thursday, by 11:55pm, ET
Responses Due: Sunday, by 11:55pm, ET.

*Only during the first week of class are assignments not due until 11:55 p.m., ET, Sunday. After Week 1, all initial posts will be due Thursday, by 11:55pm, ET.

Rubric for grading forums: 60% – Initial Post; 20% – Each Response up to 2

Please sign ALL your Forum posts with the name that you like to be called – it makes it so much easier for the rest of us to address you by your preferred name when we respond.

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