Gregory buys a bag of cookies that contains 7 chocolate chip cookies, 5 peanut butter cookies, 8 sugar cookies and 8 oatmeal cookies. What is the probability that Gregory reaches in the bag and randomly selects an oatmeal cookie from the bag, eats it, then reaches back in the bag and randomly selects a peanut butter cookie? Give your answer as a fraction, or accurate to at least 4 decimal places.

According to a recent survey, 38% of Americans get enough sleep each night. If 8 people are selected, find the probability that at least 2 people will get enough sleep each night. Round to four decimal places.

Find the probability of choosing a letter other than L from a bag that contains the eighteen letters of the Greek city ELEFTHERIO-KORDELIO. Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.

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.

A baseball player has a batting average of 0.355. What is the probability that he has exactly 4 hits in his next 7 at bats? Round your answer to 4 decimals. The probability is Show your work. Show what you entered into the calculator.

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.

in a break room there are 3 bags of pretzels 2 bags of doritos and 4 bags of popcorn .find the probability that someone selects a bag of pretzels or a bag of doritos.

In a large school, it was found that 71% of students are taking a math class, 72% of student are taking an English class, and 93% of students are taking both. Find the probability that a randomly selected student is taking a math class or an English class. Write your answer as a decimal, and round to 2 decimal places if necessary. Find the probability that a randomly selected student is taking neither a math class nor an English class. Write your answer as a decimal, and round to 2 decimal places if necessary.

A high school baseball player has a 0.298 batting average.  In one game, he gets 6 at bats. What is the probability he will get a least 2 hits in the game?

When manufacturing fabric, the mean number of imperfections per yard of fabric is 0.12. Find the probability that 2 yards of fabric will have at most 1 imperfection.