Answer:
The correct option is (b).
Step-by-step explanation:
If X 
N (µ, σ²), then 
, is a standard normal variate with mean, E (Z) = 0 and Var (Z) = 1. That is, Z N (0, 1).
The distribution of these z-variate is known as the standard normal distribution.
The mean and standard deviation of the active minutes of students is:
<em>μ</em> = 60 minutes
<em>σ </em> = 12 minutes
Compute the <em>z</em>-score for the student being active 48 minutes as follows:
Thus, the <em>z</em>-score for the student being active 48 minutes is -1.0.
The correct option is (b).
-8, 3 Do you need me to explain
Answer:
Joel earns $35.00 commission and the store keeps $715.
Step-by-step explanation:
You need to figure 5% of what he sold - or 5% of $750.
Of course, you can use a calculator, or multiply $750 by .05. I prefer to think of 10 percent ($75.00) and half that to get 5%. $35.00.
Joel earns $35.00 on the sale. Not bad!
If he gets to keep $35, deduct this from the price to find out how much the store will keep.
$750 - $35 - $715.
Answer:
36i^2 i think that's right
