Jtn resources, inc. is studying the number of monthly absences among its 125 employees. the following probability distribution shows the likelihood that people were absent 0, 1, 2, 3, 4, or 5 days last month. number of days absent probability 0 0.60 1 0.20 2 0.12 3 0.04 4 0.04 5 0.00 based on this information, what is the variance of the number of days absent?

Carter drank 15.75 gallons of water in 4 weeks. he drank the same amount of water each day.a. estimate how many gallons he drank in one day.b. estimate how many gallons he drank in one week.c. about how many days altogether will it take him to drink 20 gallons?

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.