A person with type o blood type can donate red blood cells to anybody because type o is the universal blood type. about 44% of the US population has blood type o. University High held a blood drive where 50 students donated blood. part a: what is the probability that exactly 25 of the students have type O blood?

part b: What is the probability that at least 25 of the students have blood type O?

is there any chance you know how to do this one as well? thank you so much

30 POINTS GIVEN!!! PLEASE HELP ME!

0.107

0.733

Step-by-step explanation:

Part A) Use binomial probability.

P = nCr pʳ qⁿ⁻ʳ

where n is the number of trials,

r is the number of successes,

p is the probability of success,

and q is the probability of failure (1−p).

n = 50, r = 17, p = 0.31, q = 0.69.

P = ₅₀C₁₇ 0.31¹⁷ 0.69⁵⁰⁻¹⁷

P ≈ 0.107

Or, using binompdf function in a calculator:

binompdf(n, p, r)

= binompdf(50, 0.31, 17)

≈ 0.107

Part B) This time, you'll need to use the binomcdf function in a calculator.

binomcdf(n, p, r)

= binomcdf(50, 0.31, 17)

≈ 0.733

hope this helps!!:)

answer: 12

step-by-step explanation:

because yes

true

step-by-step explanation:

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