A group of 14 students' cholesterol levels are tested. Suppose the probability of a student having a healthy cholesterol level is 0.25. What is the probability that exactly four out of 14 students have healthy cholesterol levels? (Round your answer to three decimal places.)

A researcher believes that 8% of females smoke cigarettes. If the researcher is correct, what is the probability that the proportion of smokers in a sample of 863 females would be greater than 6%? Round your answer to four decimal places.

p= .3313 n= 77 p-hat= .5  What is the probability that of the 77 people selected more that 50% will have a cat at home.

We are interested in analyzing data related to college football. Use S to denote the team is in the SEC and use W to denote a team has a winning season. The probability that a team is in the SEC in the data set is 5.5%. The probability that a team has a winning season is 52.5%. The probability that a team is in the SEC and has a winning season is 3.55%. What percentage of teams are in the SEC or had a winning season? b. What percentage of people teams are in the SEC and did NOT have a winning season? Given a team had a winning season, what is the probability that they are in the SEC? а. с.

A blood test for diabetes gives a positive result with a proportion of 0.44 when an individual has diabetes and a negative result with a proportion of 0.33 when they do not. Approximately a proportion of 0.14 of the population has diabetes. If a randomly chosen citizen tested negative, what is the probability that they actually have diabetes? Round your answer to five decimals.

A film distribution manager calculates that 6% of the films released are flops. If the manager is correct, what is the probability that the proportion of flops in a sample of 681 released films would be greater than 8%? Round your answer to four decimal places.

If the probability that a professor correctly writes a slide is 0.80, what is the probability that at least 6 out of 8 slides are correct? Round your answer to two decimal places. Write your answer as a fraction not as a percentage (i.e. write as 0.38 not as 38%).

A group of 11 students' cholesterol levels are tested. Suppose the probability of a student having a healthy cholesterol level is 0.25. What is the probability that exactly seven out of 11 students have healthy cholesterol levels? (Round your answer to three decimal places.)

The probability of an event occurring is 3/7. Determine the odds against the event occurring.

Suppose 58% of the children in a school are girls.   If a sample of 425 children is selected, what is the probability that the sample proportion of girls will be greater than 63%? Round your answer to four decimal places.