921÷ 2 = 460.5
which means the remainder is 1
So; the answer is 1
Step-by-step explanation:

Square both sides of the equation.


SOLUTION
The mean is 4min
standard deviation is 1min
the z score is

where

then we have

The probability the call lasted less than 3 min will be
Therefore, the probability that (z < -1 ) is
[tex]\begin{gathered} Pr(z<-1)=Pr(0
Hence, the percentage of the calls that lasted less than 3 min is 16%
2nd one: 2 rectangles can have thr same area but have different perimeters.
Answer:
Should be 1/7
Step-by-step explanation:
I just measured it.