Answer:
This is binomial.
Here n = 5
p = 2/7
mean = np = 5*2/7 = 10/7 = 1.42857
standard deviation = sqrt(npq) = sqrt(5*2/7*5/7) = 1.01015
Step-by-step explanation:
Work Shown.
Step-by-step explanation:
24% = 156
1% = 24%/24 = 156/24 = 6.5
100% = 1%×100 = 6.5×100 = 650
so, 650 students were surveyed.
A, the number of hours it takes the baker to frost all the cupcakes
Answer:

Step-by-step explanation:
Solve for
:

-Add both sides by
:


-Take
and divide it on both side of the equation:


So, the value of
is
.