Answer:
A. 2/5, 0.40, 40%
Step-by-step explanation:
To turn a fractions into a decimal divided the numerator by the denominator. 2/5=0.40.
Put common terms in evidence and simplify:
-3 + x = 11
x = 11 + 3
x = 14
Answer: 
Step-by-step explanation:
Sampling distribution of the sample proportion
:

The sampling distribution of the sample proportion
has mean =
and standard deviation =
.
Given : The proportion of left handed people in the population is about 0.10.
i.e. p=0.10
sample size : n= 300
Then , the sampling distribution of the sample proportion
will be :-


(approx)
Hence, the sampling distribution of the sample proportion
is 
Answer:
u should redder the reader about the
formulas as it is a direct question