Question

In a certain large population of people, the proportion that are Rh positive (their blood has the rhesus protein) is approximately 0.82. Suppose 14 people are randomly selected from this population.

What is the probability that no more than 12 are Rh positive?

Answer #1

The probability that no more than 12 are rh positive is 0.7469

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In a certain large population of people, the proportion that are
Rh positive (their blood has the rhesus protein) is approximately
0.82. Suppose 14 people are randomly selected from this
population.
a) What is the probability that exactly 12 are Rh positive? Give
your response to at least 3 decimal places.
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Give your response to at least 3 decimal places.
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*Please explain in depth how you got this answer, and if you
used a TI-84 please tell what buttons you used*

The distribution of blood types in
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O-positive: 37 %
O-negative: 7 %
A-positive: 35 %
A-negative: 6 %
B-positive: 9 %
B-negative: 2 %
AB-positive: 3 %
AB-negative: 1
%
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mean standard deviation
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