The Philippine Red Cross says that about 11% of PH population has Type B blood. A blood drive is being held at your school. A. What is the probability that exactly 2 of the first 15 blood donors have Type B blood? a. 0.2238 b. 0.2793 c. 0.009 d. 0.7762 B. Given this sample of blood donors, compute the expected number who have Type B blood. a. 11 b. 3.0 c. 1.65 d. 2.2

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STATISTICS AND PROBABILITY

MULTIPLE CHOICE

The Philippine Red Cross says that about 11% of PH population has Type B blood. A blood drive is being held at your school.

A. What is the probability that exactly 2 of the first 15 blood donors have Type B blood?

a. 0.2238

b. 0.2793

c. 0.009

d. 0.7762

B. Given this sample of blood donors, compute the expected number who have Type B blood.

a. 11

b. 3.0

c. 1.65

d. 2.2

 

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