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Working with binomial probability. A histogram is attached in a jpg format.

If the parents have 5 children, the number who have type O blood is a random variable X that has the binomial distribution with n=5 and p=0.25 a) What are the possible values of X? b) Find the probability of each value of X. Draw a histogram to display this distribution. (Because probabilities are long-run proportions, a histogram with the probabilities as the heights of the bars shows what the distribution of X would be in very many repetitions.)

Subject:

Statistics

Topic:

All Topics

Posting ID:

5516

OTA ID:

101733

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Multiplication Rule for Independent Event/General Addition rule for any two events

The distribution of blood types among white type Americans is approximately as follows: 37% type A, 13% type B, 44% type O, and 6% type AB. Suppose that the blood types of married couples are independant and that both the husband and the wife follow this distribution. a)An individual with type B blood can safely receive transfusions only from persons with type B or type O blood. What is the probability that the husband of a woman with type B blood is an acceptable blood donor for her? b)What is the probability that in a randomly chosen couple the wife has type B blood and the husband has type A? c)What is the probability that one of a randomly chosen couple has type A blood and the other... click for more

Subject:

Statistics

Topic:

All Topics

Posting ID:

5518

OTA ID:

103139

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Binomial Probability

A factory employs several thousand workers, of whom 30% are Hispanic. If the 15 members of the union executive committee were chosen from the workers at random, the number of Hispanics on the committee would have the binomial distribution with n=15 and p=0.3 a)What is the probability that exactly 3 members of the committee are Hispanic? b)What is the probability that 3 or fewer members of the committee are Hispanic?

Subject:

Statistics

Topic:

All Topics

Posting ID:

5519

OTA ID:

102799

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Normal Approximation

Here is a simple probability model for multiple-choice tests. Suppose that each student has probability p of correctly answering a question chosen at random from a universe of possible questions. (A strong student has a higher p than a weak student.) Answers to different questions are independant. Jodi is a good student for whom p=0.75 a)Use the normal approximation to find the probability that Jodi scores 70% or lower on a 100-question test. b)If the test contains 250 questions, what is the probability that jodi will score 70% or lower?

Subject:

Statistics

Topic:

All Topics

Posting ID:

5520

OTA ID:

102799

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Statistics

Hypothesis testing

Subject:

Statistics

Topic:

All Topics

Posting ID:

5524

OTA ID:

103060

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