Mathematics, 31.10.2019 02:31, BreBreDoeCCx
The post office has established a record in a major midwestern city for delivering 90 percent of its local mail the next working day. answer the following questions based on this information:
a. if you mail eight local letters, what is the probability that all of them will be delivered the next day?
b. if you mail eight local letters, what is the average number you expect to be delivered the next day?
c. calculate the standard deviation of the number delivered when 8 local letters are mailed.
d. when there are 8 local letters mailed, what is the probability that the number delivered will be within 2 standard deviations of the mean?
Answers: 2
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 19:30, Pen350
Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck
Answers: 2
Do you know the correct answer?
The post office has established a record in a major midwestern city for delivering 90 percent of its...
Questions in other subjects:
Chemistry, 25.01.2022 02:20
Mathematics, 25.01.2022 02:20
Mathematics, 25.01.2022 02:20
Mathematics, 25.01.2022 02:20
Mathematics, 25.01.2022 02:20
Mathematics, 25.01.2022 02:20
