Answer:
Step-by-step explanation:
The confidence interval for population proportion :
, where n= sample size, = sample proportion , z*= Critical z-value.
Let p = population proportion of successes.
Given: n= 200 ,
Critical z value for 95% confidence = 1.96
The 95% confidence interval for a population proportion is:
Required confidence interval:
14 and 21 and 18
is three of them
Answer: a = 8
Volume of a square based pyramid is given as
.
where a is the length of the side and h is the height.
Substituting into the formula , we have
V =
128 = /3
384= X 6
Divide through by 6
384/6 =
64 =
Therefore :
a =
a = 8
m + 1/4 = 2/3
Since they are equal lengths set them = to each other.
x- axis is 2 units away
12
1.08 1.08 divded by 0.09 equals 12