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).
Answer:
d = 3/7 = 0.429
d = 1
Step-by-step explanation:
Answer: c) 0.531441 = 0.53
e) 3.375 = 3.38 or 3.4
f)0.0289 =0.03
Step-by-step explanation: everyone will say that they will mark as brainliest but nobody does, you guys lie, but I still give the answers
Answer:
The first photo
Step-by-step explanation:
Its a i think