Register
If the mean of an exam is 76 and standard deviation is 9, what is the probability that anyone scored 100
49.9k views
1 vote
If the mean of an exam is 76 and standard deviation is 9, what is the probability that anyone scored 100

User Giallo
by
7.1k points

1 Answer

7 votes

Answer:

Below

Explanation:

100 pts is 24 points above the mean

24 / 9 = 2.666 standard deviations ABOVE the mean

z-score = 2.666

from z-score table , this corresponds to .9961 people scoring less than 100 ....or 1 - .9961 = .0039 scoring 100 (.39 %)

User Suzana
by
8.0k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.8m questions

11.4m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!