HURRY NOT MATCH TIME Caleb types 100 words in 5 minutes. What is the unit rate?
100 words to 5 minutes
5 minutes per 100 words
20 words per minute
1 minute to 20 words

Airline passengers arrive randomly and independently at the passenger-screening facility at a major international airport. the mean arrival rate is 10 passengers per minutes. compute the following probabilities. p(x = 4) p(x > 11)

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much