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grbavit

Answered 2021-09-12
Author has **26101** answers

asked 2021-09-07

One store notes that the probability of some type of error in a telephone order is 0.2. A supervisor randomly selects telephone orders and carefully inspects each one.

What is the probability that the inspector will examine at least seven orders before finding an error?

What is the probability that the inspector will examine at least seven orders before finding an error?

asked 2021-09-05

One store notes that the probability of some type of error in a telephone order is 0.2. A supervisor randomly selects telephone orders and carefully inspects each one.

Suppose the first four telephone orders contain no errors, what is the probability that the first error will be on the eighth order or later?

Suppose the first four telephone orders contain no errors, what is the probability that the first error will be on the eighth order or later?

asked 2021-09-09

One store notes that the probability of some type of error in a telephone order is 0.2. A supervisor randomly selects telephone orders and carefully inspects each one.

What is the probability that the third telephone order selected will be the first to contain an error?

What is the probability that the third telephone order selected will be the first to contain an error?

asked 2021-06-24

Suppose you ask a friend to randomly choose an integer between 1 and 10, inclusive. What is the probability that the number will be more than 4 or odd? (Enter your probability as a fraction.)

asked 2021-06-28

asked 2021-09-01

Jenny sells ‘honey tea’ to raise fund for homeless people. The probability of making a sale is, independently, 0.3 for each person she approaches.

What is the probability that she will makes 4 sales before the seventh person she approaches?

What is the probability that she will makes 4 sales before the seventh person she approaches?

asked 2021-08-08

Continuous Probability Distributions

The data records the length of stay of engineering students in the university. We will assume a uniform distribution between 5 to 7 years, inclusive. What is the probability that a randomly chosen engineering student will stay at most 6 years?

The data records the length of stay of engineering students in the university. We will assume a uniform distribution between 5 to 7 years, inclusive. What is the probability that a randomly chosen engineering student will stay at most 6 years?