At the Blood Bank, they know that O+ blood is the most common blood type and that 40% of the people are known to have 0+blood. Blood type A-is a very scarce blood type and only 6% of the people have A-blood. Half of the people have blood type A or B. Let: X = number of people who have blood type O+ Y = number of people who have blood type A- Z = number of people who have blood type A or B a) Consider a random sample of n = 12 people who donated blood over the past three months. The expected number of people with blood type O+is and the expected number of people with blood type A- is Round your answers to 2 decimal places. Calculate the following probabilities: P(X = 9) = Round your answer to 4 decimal places. P(X > 3) = Round your answer to 4 decimal places.
At the Blood Bank, they know that O+ blood is the most common blood type and that 40% of the people are known to have 0+blood. Blood type A-is a very scarce blood type and only 6% of the people have A-blood. Half of the people have blood type A or B. Let: X = number of people who have blood type O+ Y = number of people who have blood type A- Z = number of people who have blood type A or B a) Consider a random sample of n = 12 people who donated blood over the past three months. The expected number of people with blood type O+is and the expected number of people with blood type A- is Round your answers to 2 decimal places. Calculate the following probabilities: P(X = 9) = Round your answer to 4 decimal places. P(X > 3) = Round your answer to 4 decimal places.
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.4: Applications
Problem 1EQ: 1. Suppose that, in Example 2.27, 400 units of food A, 600 units of B, and 600 units of C are placed...
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