C
5 × (8 + 2 ) = 5(8 + 2) = (5 × 8 ) + (5 × 2)
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:
Sum of (k*7) with i=1 to n=4
Step-by-step explanation:
Answer:
In exact form it is w=-33/8
In decimal form it is w=-4.125
In mixed number form it is w=-4 1/8
Step-by-step explanation: