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Sphinxa [80]
3 years ago
9

A study shows that 84​% of the population of all calculus students consider calculus an exciting subject. Suppose 29 students ar

e randomly and independently selected from the population. If the true percentage is really 84​%, find the probability of observing 28 or more of the students who consider calculus to be an exciting subject in the sample of 29. Round to six decimal places.
Mathematics
1 answer:
Delvig [45]3 years ago
8 0

Answer:

P = 0.041553

Step-by-step explanation:

Probability that a student considers calculus exciting. = 0.84

Probability that a student finds calculus not exciting = 0.16

This is a binomial experiment.

p = 0.84 and n = 29

The probability of observing 28 or more of the students who consider calculus to be an exciting subject in our sample of 29 is given by:

\left(\begin{array}{ccc}29\\28\end{array}\right) .0.84^{28} .0.16^{1}+\left(\begin{array}{ccc}29\\29\end{array}\right) .0.84^{29} .0.16^{0}

P = 0.041553

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