The average number of shipments that arrive at a landing area within a depot is two per hour during a regular business day. These shipments arrive randomly, and are not related to each other in any...

The average number of shipments that arrive at a landing area within a depot is two per hour during a regular business day. These shipments arrive randomly, and are not related to each other in any...

It is estimated that 80% all twenty-year-old men have weights ranging from 140 to 150 lb. Assuming the weight distribution can be adequately modeled by a normal distribution with mean 145 lb and standard...

There are nine raincoats in size 6-8 on sale in the girl's department at Bloomingdale's. Three have tulips, four have bunnies, and two have hearts. Mack is in a rush and randomly chooses two raincoats...

A spinner has three equal areas (colored yellow, pink, and green). Joe spins the spinner three times. What is the probability of getting 'green' on all three spins? a.1/81 b.1/27 c...

How many ways can 6 balls be put into 4 boxes? What formula is used to solve?

A) Skewedness B) Outliers C) Symmetry D) Centerness

Person A has a z-score of -3 and is on her phone for 7 hours a day. Person B has a z-score of -4 and is on her phone for 3 hours a day. It is a normal distribution. What would be the mean of the data...

You are running a Major-League Baseball team. Your analyst tells you that based on her analysis, the number of games a team wins is related to the average salary the owner pays to the players. The...

In a set of 95 ACT? scores, where the mean is 25 and the standard deviation is 6.08?, (a) how many scores are expected to be lower than 18.92 (one standard deviation...

A sample size of 50 is selected from a normal distribution having a mean of 95 and a standard deviation equal to 15. What is the probability of selecting a sample having a mean exceeding 100?

If female blood pressure is normally distributed with a mean of 114 and standard deviation of 19.8, find p12 and p77

The lengths of metal bolts produced by a machine are found to be normally distributed with a mean of 19.8 cm and a standard deviation of 0.3 cm. There are some concerns that there is a fault...

A random sample is selected of working adults living in CAlgary, Canada. They were asked how long, in minutes is their typical daily commute. The resulting sample mean was 28.5 minutes and the resulting...

How many hours did mary sleep last night? is that a Statistical question.

A large tank of fish from a hatchery is being delivered to a lake the hatchery claims that the mean length of the tank is 15 in and the standard deviation population is unknown. A randomly sample...

On a(n) 25-problem test, how many ways can a person get 8 problems correct and 17 problems wrong?

i have the answer. I just need a second opinion to do it and see if i gt the same answer as them

NEED HELP!!!

Students in a college course take a common final exam. The exam scores are normally distributed with a mean of 76 and a standard deviation of 8. Bob scored an 88.What percent of students scored...

I read that once a population reaches 25% of a certain trait or ideal (in human populations) that it will increase exponentially after that, is this true and is there a name for this increase?