Question 1180746: 9. What does the mean of the above probability
distribution tell us?
A. The average number of typhoons entering the
country per month is 0.4.
B. The average number of typhoons entering the
country per month is 1.4.
C. The average number of typhoons entering the
country per month is 2.4.
D. The average number of typhoons entering the
country per month is 3.4.
10. Refer to Item no. 14. What is the variance of the
probability distribution?
A. 1.24 B. 1.54
C. 1.84
D. 2.14
11. Diosele has grades 86, 68 and 79 in her first three tests in
Statistics. What grade must she obtain on the fourth test
to get an average of 78?
A. 76 B. 77 C. 78
D. 79
Answer by ikleyn(52855)   (Show Source):
You can put this solution on YOUR website! .
Hello, in part 10 of your post, you refer to Item no. 14.
But we do not have an access to this item and, therefore, we are disarmed and can not answer your question.
Looking into this part, I conclude that you do not read what you post and do not think on it.
It is very sadly to see it . . .
///////////////
Also, for the future, please read this document below.
One and ONLY ONE problem/question per post.
It is the RULE, the POLICY and the REQUIREMENT of this forum.
It is written in this page
https://www.algebra.com/tutors/students/ask.mpl?action=ask_question&topic=Equations&return_url=http://www.algebra.com/algebra/homework/equations/
from which you post your problems.
It is assumed that you read these rules before posting.
It is also assumed that you do understand what is written in that page and follow the rules.
Those who violate them, work against their own interests.
|
|
|
