Mathematics
Mathematics, 17.09.2019 07:00, smckinney6139

Students in a class take a quiz with eight questions. the number x of questions answered correctly can be approximated by the following probability distribution. complete parts (a) through (e).
x p(x)
1 0.020.02
2 0.040.04
3 0.060.06
4 0.080.08
5 0.130.13
6 0.250.25
7 0.190.19
8 0.150.15
9 0.08
(a) use the probability distribution to find the mean of the probability distribution. muμequals=55(round to the nearest tenth as needed.)
(b) use the probability distribution to find the variance of the probability distribution. sigma squaredσ2equals=3.63.6(round to the nearest tenth as needed.)
(c) use the probability distribution to find the standard deviation of the probability distribution.1.91.9(round to the nearest tenth as needed.)
(d) use the probability distribution to find the expected value of the probability distribution. 55(round to the nearest tenth as needed.)

answer
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 20:50, RyleyM
The cost of turkey is directly proportional to its weight. if a 12-pount turkey costs $27, how much does a 16-pound turkey cost? a. $33.75 b. $36.00 c. $31.00 d. $32.50
Answers: 3
image
Mathematics, 21.06.2019 21:30, jtorres0520
Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?
Answers: 3
image
Mathematics, 21.06.2019 22:20, dontworry48
Which graph represents the given linear function 4x+2y=3
Answers: 1
image
Mathematics, 21.06.2019 22:20, Kode19001
Which of the following describes how to translate the graph y = |x| to obtain the graph of y = |x+1|+1? shift 1 unit left and 1 unit down shift 1 unit left and 1 unit up shift 1 unit night and 1 unit down shift 1 unit nght and 1 unit up
Answers: 1
Do you know the correct answer?
Students in a class take a quiz with eight questions. the number x of questions answered correctly c...

Questions in other subjects:

Konu
Mathematics, 17.11.2020 22:40
Konu
Mathematics, 17.11.2020 22:40
Konu
Mathematics, 17.11.2020 22:40
Konu
English, 17.11.2020 22:40