I think that the answer is 15*10^5
Note: <em>The missing graph is attached below. </em>
Answer:
'linear decreasing' best describes interval C on the graph shown.
Step-by-step explanation:
Note: <em>The missing graph is attached below. </em>
From the attached graph, it is easy to figure out that the interval C on the graph shown is showing a straight line. So the graph of the function would be linear.
Also on the interval C, the value of y is decreasing as the value of x increase. So, the slope of the straight line would be negative.
So the interval C indicates that the function is decreasing there.
Therefore, 'linear decreasing' best describes interval C on the graph shown.
Answer: 1.25
Step-by-step explanation:
Given: A college-entrance exam is designed so that scores are normally distributed with a mean
= 500 and a standard deviation
= 100.
A z-score measures how many standard deviations a given measurement deviates from the mean.
Let Y be a random variable that denotes the scores in the exam.
Formula for z-score = ![\dfrac{Y-\mu}{\sigma}](https://tex.z-dn.net/?f=%5Cdfrac%7BY-%5Cmu%7D%7B%5Csigma%7D)
Z-score = ![\dfrac{625-500}{100}](https://tex.z-dn.net/?f=%5Cdfrac%7B625-500%7D%7B100%7D)
⇒ Z-score = ![\dfrac{125}{100}](https://tex.z-dn.net/?f=%5Cdfrac%7B125%7D%7B100%7D)
⇒Z-score =1.25
Therefore , the required z-score = 1.25
Answer:
The answer is 4
Step-by-step explanation:
Standard deviation=4.
let the mean be 12 and the score be 0 (therefore 12 point difference.)
0-12/s=-3 (s being standard deviation)
-12/4 = -3