Answer:
As sample sizes increase, the sampling distributions approach a normal distribution. With "infinite" numbers of successive random samples, the mean of the sampling distribution is equal to the population mean (µ).
Step-by-step explanation:
population variance =σ
sample variance=}[/tex]
where n is sample size
so as n increases ,}[/tex] decreases, so sample variance decreases
Answer:
A
Step-by-step explanation:
=2x+7-x^2+2
=-x^2+2x+9
176ft^2 first
141.3ft^2 second
Answer:
2:5
Step-by-step explanation:
They can both be divided by 3.
6 divided by 3 is 2, while 15 divided by 3 is 5
Boys:Girls
6:15
<u>2:5</u>
x-intercept(s):
(
7
,
0
)
, (-1,0)
y-intercept(s):
(0,-7)
Step-by-step explanation: