Using the normal distribution, it is found that the correct option is:
In a <em>normal distribution</em> with mean
and standard deviation
, the z-score of a measure X is given by:
- It measures how many standard deviations the measure is from the mean.
In this problem:
- The mean on the Wechsler Scale is of 100, hence
.
- The standard deviation is of 17, hence
.
- Brianna had an score of 117, hence

Then:



Hence, the option d is correct.
To learn more about the normal distribution, you can check brainly.com/question/24663213
<u>Answer:</u>
<h2>Romania</h2>
U.S: 272,648,000÷9,364,520= 29.12
<u><em>Step-by-step</em><em> </em><em>explaination</em></u>
US: 29.12 people per square km
Romania: 22,609,000÷237,391= 95.24
Romania: 95.24 people per square km
Ghana: 18,339,000÷237,553= 77.20
Ghana: 77.2 people per square km
Answer:
-28x -16 is the simplified answer.
Step-by-step explanation:
You have to move your constants towards your constants. So -9x and -19x are constants because their variable is the same. SO -9x plus -19x is -28x. And -33 and 17 are constant because they have the same variable so -33 plus 17 is -16. You can recheck my math to make sure.
Step-by-step explanation:

Step-by-step explanation:
$103.23
$100
$45.34
+_____
=248.57