ount of time spouses shop for anniversary cards can be modeled by an exponential distribution with the average amount of time equal to 58 minutes. What is the probability that a randomly selected spouse spends no more than 20 minutes shopping for an anniversar

A bank received on average 9 bad cheques per day, what is the probability that the bank will receive 5 bad cheques on any given day.  Round to four decimals

A region averages 1.5 droughts per decade. What is the probability of getting 5 droughts in the next 30 years? 5 droughts in 30 years is very close to the average value of 4.5 in 30 years. Explain why the probability you got above makes sense. What is the probability of getting at least 1 drought in the next decade?

A basketball player hits three-point shots 45% of the time.  If she takes 4 shots during the game, what is the probability that she misses the first shot and hits the last three shots?

A survey of 190 students at a College showed that 108 students studied College Math, 70 studied Statistics, 30 studied both College Math and Statistics. Find the probability that randomly selected student studied College Math or Statistics. Round your answer to two decimal places

Suppose that at a college, 55% of the students earn a degree at the end of four years and 27% earn a degree at the end of five years. What is the probability of earning a degree at the end of four or five years? Give your answer exactly as a decimal (not as a percent).

A nervous kicker usually makes 69% of his first field goal attempts. If he makes his first attempt, his success rate rises to 94%. What is the probability that he makes his first two kicks? The probability that the kicker makes his first two kicks is (Round to three decimal places as needed.)

Find the probability that a driver with at least one collision in the past year is a middle aged adult driver.

A study indicates that 73% of singles have have tried online dating. You randomly sample 5 singles. Find the probability that at least 4 have tried online dating. Enter your answer as an equation or as a number rounded to 4 decimal places.

The amount of time spouses shop for anniversary cards can be modeled by an exponential distribution with the average amount of time equal to 42 minutes. What is the probability that a randomly selected spouse spends more than 12 but less than 104 minutes to shop for an anniversary card?