Mathematics, 21.02.2021 17:10 lukeperry
1 . A birdwatcher wishes to model the number of birds arriving at a particular barn per hour.
a) State two conditions needed for a Poisson distribution to be a suitable model.
b) The expected number of birds arriving per hour is 7. Assuming the conditions for a Poisson model are met, find the probability that, in a randomly chosen hour during the day, the number of birds arriving at the barn is:
(i) fewer than 4
(ii) at least 7
(iii) exactly 9
Answers: 2
Mathematics, 21.06.2019 16:00
Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.
Answers: 2
Mathematics, 21.06.2019 17:00
Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?
Answers: 1
Mathematics, 21.06.2019 19:30
The total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?
Answers: 2
Mathematics, 21.06.2019 21:30
Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.
Answers: 2
1 . A birdwatcher wishes to model the number of birds arriving at a particular barn per hour.
a) St...
English, 26.03.2021 19:50
Mathematics, 26.03.2021 19:50
English, 26.03.2021 19:50
Chemistry, 26.03.2021 19:50
Mathematics, 26.03.2021 19:50
Mathematics, 26.03.2021 19:50
Mathematics, 26.03.2021 19:50
Mathematics, 26.03.2021 20:00
Mathematics, 26.03.2021 20:00
History, 26.03.2021 20:00
Mathematics, 26.03.2021 20:00