People with O-negative blood type are called "universal donors" because O-negative blood can be given to patients with any blood type. Suppose that about 6.4% of people have O-negative blood type. Open the worksheet named "Binomial" in your workbook. Before answering the next two questions, fill in the shaded cells (cells C2 and C3 and cells Bó to C14 in the table), assuming that you will have a sample of 8 independent donors arriving to a blood donation clinic. Your variable of interest (X) is the number of universal donors in that sample. In column B of the table, you have P(X=x) and in column C you have P(X <=x). Use the Excel Function =Binom.Dist() to fill the table. See explanation for the function Binom.Dist in the document "Some Excel Functions". Question 37 What is the probability that there are at most two universal donors, in a sample of 8 donors to arrive to the clinic? Enter your answer to 4 decimal values. Question 38 What is the probability that there are exactly two universal donors, in a sample of 8 donors to arrive to the clinic? Enter your answer to 4 decimal values.

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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People with O-negative blood type are called "universal donors" because O-negative blood can be
given to patients with any blood type. Suppose that about 6.4% of people have O-negative blood
type.
Open the worksheet named "Binomial" in your workbook. Before answering the next two questions,
fill in the shaded cells (cells C2 and C3 and cells Bó to C14 in the table), assuming that you will have
a sample of 8 independent donors arriving to a blood donation clinic. Your variable of interest (X) is
the number of universal donors in that sample.
In column B of the table, you have P(X=x) and in column C you have P(X <=x).
Use the Excel Function =Binom.Dist() to fill the table. See explanation for the function Binom.Dist in
the document "Some Excel Functions".
Question 37
What is the probability that there are at most two universal donors, in a sample of 8 donors to arrive
to the clinic?
Enter your answer to 4 decimal values.
Question 38
What is the probability that there are exactly two universal donors, in a sample of 8 donors to arrive
to the clinic?
Enter your answer to 4 decimal values.
Transcribed Image Text:People with O-negative blood type are called "universal donors" because O-negative blood can be given to patients with any blood type. Suppose that about 6.4% of people have O-negative blood type. Open the worksheet named "Binomial" in your workbook. Before answering the next two questions, fill in the shaded cells (cells C2 and C3 and cells Bó to C14 in the table), assuming that you will have a sample of 8 independent donors arriving to a blood donation clinic. Your variable of interest (X) is the number of universal donors in that sample. In column B of the table, you have P(X=x) and in column C you have P(X <=x). Use the Excel Function =Binom.Dist() to fill the table. See explanation for the function Binom.Dist in the document "Some Excel Functions". Question 37 What is the probability that there are at most two universal donors, in a sample of 8 donors to arrive to the clinic? Enter your answer to 4 decimal values. Question 38 What is the probability that there are exactly two universal donors, in a sample of 8 donors to arrive to the clinic? Enter your answer to 4 decimal values.
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