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Question

Dermaceltic' company gives 28 subjects a new antihistamine and gives another 28 subjects a placebo pill containing no medication. Afterwards, 8 of the 56 subjects who were given the placebo were selected to be studied further. Let random variable X represent the number of subjects among the selected who were given the placebo. Find the probability mass function P(X = x), and sketch the histogram. What does this number represent? Find the expected number represented by E(X). Find P(X < 6), that does this number represent? Using the hypergeometric probability distribution model, calculate the expression that can be used to find the probability mass function P(X = x). Simplify your answers. Find the probability mass function P(X = x) - P(X = x). The probability mass function P(X = x) is a type of discrete probability distribution. Use complete sentences as needed. Round to three decimal places. Let K be the number of defective pedometers among the selected and let Y = K(X). Choose the correct histogram below: [ |77436 0 |744867 012248078 01224807 Find P(X = 4). P(X = 4) - L. Round to three decimal places. What does P(X = x) represent? This is the probability that only 0 of the total 56 subjects received the placebo. This is the probability that exactly 0 of the selected subjects received the placebo. This is the probability of at least 1 subject receiving the placebo. This is the probability that the fourth of the subjects selected received the placebo.

          Dermaceltic' company gives 28 subjects a new antihistamine and gives another 28 subjects a placebo pill containing no medication. Afterwards, 8 of the 56 subjects who were given the placebo were selected to be studied further. Let random variable X represent the number of subjects among the selected who were given the placebo.

Find the probability mass function P(X = x), and sketch the histogram. What does this number represent? Find the expected number represented by E(X). Find P(X < 6), that does this number represent? Using the hypergeometric probability distribution model, calculate the expression that can be used to find the probability mass function P(X = x).

Simplify your answers.

Find the probability mass function P(X = x) - P(X = x).

The probability mass function P(X = x) is a type of discrete probability distribution. Use complete sentences as needed. Round to three decimal places.

Let K be the number of defective pedometers among the selected and let Y = K(X). Choose the correct histogram below:

[ |77436
0 |744867
012248078
01224807

Find P(X = 4).

P(X = 4) - L. Round to three decimal places.

What does P(X = x) represent?

This is the probability that only 0 of the total 56 subjects received the placebo. This is the probability that exactly 0 of the selected subjects received the placebo. This is the probability of at least 1 subject receiving the placebo. This is the probability that the fourth of the subjects selected received the placebo.

Added by Thomas S.

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