Events a and b are mutually exclusive. suppose event a occurs with probability .33 and event b occurs with probability .38.
compute the probability that a occurs or b does not occur (or both).
compute the probability that either b occurs without a occurring or a and b both occur.

Issof claims that the scale factor is 1/2. which statement about his claim is correct

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list

In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%