The amount of time you wait for the bus is uniformly distributed on the interval from 5 to 10 minutes. Find the probability you wait 8 minutes or less

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John runs a computer software store. Yesterday he counted 131 people who walked by the store, 66 of whom came into the store. Of the 66, only 29 bought something in the store. (Round your answers to two decimal places.) Estimate the probability that a person who walks by the store will enter the store. Estimate the probability that a person who walks into the store will buy something. Estimate the probability that a person who walks by the store will come in and buy something.

It is a 2 part question. How can we find normality?

Madison usually receives 4 letters in the mail each week. Find the probability of receiving 8 letters for the next 2 weeks.

Jared buys a bag of cookies that contains 9 chocolate chip cookies, 5 peanut butter cookies, 8 sugar cookies and 6 oatmeal cookies. What is the probability that Jared reaches in the bag and randomly selects 2 oatmeal cookies from the bag? Round your answer to four decimal places.

The time to fly via a commercial airliner from Newark airport to Atlanta follows a uniform distribution and ranges from 120 minutes to 140 minutes. What is the probability that a flight is more than 128 minutes?  Express answer as a percent with 1 decimal

John runs a computer software store. Yesterday he counted 132 people who walked by the store, 69 of whom came into the store. Of the 69, only 23 bought something in the store. (Round your answers to two decimal places.)  Estimate the probability that a person who walks by the store will enter the store.

Fifty percent of consumers prefer to purchase electronics online. You randomly select 8 consumers. Find the probability that the number of consumers who prefer to purchase electronics online is more than five Find the probability that the number that prefer to purchase electronics online is more than five. P(x > 5) = (Round to three decimal places as needed.)

Dustin buys a bag of cookies that contains 7 chocolate chip cookies, 6 peanut butter cookies, 8 sugar cookies and 8 oatmeal cookies. What is the probability that Dustin randomly selects an oatmeal cookie from the bag, eats it, then randomly selects a chocolate chip cookie? Express you answer as a reduced fraction.