Answer:
2.35 calls
Step-by-step explanation:
The presented scenario can be modeled by a Poisson distribution with an average number of calls (μ) of 5.5 during the noon hour on Mondays.
Therefore, the standard deviation for the number of calls received, X, is given by:

The standard deviation of X is 2.35 calls.
Answer:
A=616cm²
Step-by-step explanation:
The question says to use

for pi, now that we know that we proceed like normal and do the formula like this.

Answer:
No.
Step-by-step explanation:
If we were to fill in the slots, the equation would be...
6x3-18=4
6 times three is 18, and 18 - 18 equals 0. So the answer would not be 1.
Y=-3x+4
slope is -6/2=-3
y-intercept 4