Mathematics
Mathematics, 11.03.2020 20:10, jkenkw4667

The following table shows the probability distribution for a discrete random
variable.
x 11 14 16 19 21 23 | 24 | 20 |
P(X) | 0.07 0.21 0.17 0.25 0.05 0.04 0.13 0.08
What is the mean of this discrete random variable? (That is, what is E(X), the
expected value of X?)
A. 20
B. 18.59
C. 19.625
D. 19

answer
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 17:30, alexandroperez13
Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?
Answers: 2
image
Mathematics, 21.06.2019 18:00, jackievelasquez3424
Find the perimeter of the figure shown above. a. 18 yds c. 20 yds b. 10 yds d. 24 yds select the best answer from the choices provided
Answers: 1
image
Mathematics, 21.06.2019 20:00, tefanyc13
Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.
Answers: 1
image
Mathematics, 21.06.2019 20:40, guyfromnasa
Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel?
Answers: 2
Do you know the correct answer?
The following table shows the probability distribution for a discrete random
variable.
x...

Questions in other subjects:

Konu
Mathematics, 06.09.2020 03:01