Answer:
A. 2.5 standard deviations below the average salary.
Step-by-step explanation:
In a normally distributed sample, the z-score measure how many standard deviations a measure is above or below the mean.
If the zscore is positive, the measure is above the mean.
If it is negative, the measure is below the mean.
A quality control specialist calculated thez-score associated with his own salary and found it was minus2.50. What is his salary?
This means that his salary is 2.5 standard deviations below the mean, that is the average salary.
The correct answer is A.
Bill received $144 more than Pam.
Explanation:
To create the ratio, we can divide 360 by 5 which equals 72.
3x72= 216
360
The ratio that is proportionate to 3:5 is 216:360
So, 360 - 216 = 144
You replace the y with f(x)
So it becomes f(x)=2x+1
Answer:
35 purses
Step-by-step explanation:
Set up a proportion, where x is the number of purses she can make in 28 hours:
= 
Cross multiply and solve for x:
8x = 280
x = 35
So, in 28 hours, she can make 35 purses
