The answer is C because when it reflects the 4 stays negative and the 6 because negative because it reflected on the negative side
Hope this helped! :))
Answer:
And we can find this probability using the complement rule and the normal standard table or excel:
The firgure attached illustrate the problem
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the retirement savings of a population, and for this case we know the distribution for X is given by:
Where
and
We are interested on this probability
And the best way to solve this problem is using the normal standard distribution and the z score given by:
If we apply this formula to our probability we got this:
And we can find this probability using the complement rule and the normal standard table or excel:
The firgure attached illustrate the problem
You can use a calculator online you know? It is 21.3
Answer:
The only way to make a question is if you have an account unless you want to make another account i think you have to log out and make a new account or go into a different device and make a new account for her.
Step-by-step explanation:
I belive this is hard for a 5th grader but my answer is c)2