subject
Mathematics, 19.01.2021 19:20 glstephens04

Phone Call's.. Theauthor found that in one month (30 days), hemade 47 cell phonecalls, which were distributed as follows: no calls were made on 17days, 1 call was made on each of 7 days, 3 calls were made on eachof two days, 4 calls were made on each of two days, 12 calls weremade on one day, and 14 calls were made on one day. a) Find the mean number of calls perday.
b) Use the poisson distribution tofind the probability of no calls on a day, and compare the resultsto the actual relative frequency for the number of days with nocalls.
c) Use the Poisson distribution tofind the probability of one call on a day, and compare results tothe actual relative frequency for the number of days with onecall.
d) Based on the preceding results, does it appear that the author's cell phone calls made in a day fitthe poisson distribution reasonably well? Why or whynot?

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 15:10
Choosing a booth location: your manager is sending two people to work at the conference. she wants a booth that will give your company good visibility for no more than 35% of the total budget ($3000). the conference coordinator just told you there are only five booths left. which booth will you choose? write the inequality that shows how much money you can spend on the booth simplify the inequality that shows how much money you can spend on the booth.
Answers: 2
question
Mathematics, 21.06.2019 15:30
Which polynomial function has x intercepts -1, 0, and 2 and passes through the point (1, -6)
Answers: 2
question
Mathematics, 21.06.2019 20:00
Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.
Answers: 2
question
Mathematics, 21.06.2019 21:30
Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.
Answers: 1
You know the right answer?
Phone Call's.. Theauthor found that in one month (30 days), hemade 47 cell phonecalls, which were di...
Questions
question
History, 12.10.2019 05:50