Answer: 0.332 < p < 0.490
Step-by-step explanation:
We know that the confidence interval for population proportion is given by :-
, where n= sample size
= sample proportion
z* = critical z-value.
As per given , we have
n= 258
Sample proportion of college students who own a car = 
Critical z-value for 99% confidence interval is 2.576. (By z-table)
Therefore , the 99% confidence interval for the true proportion(p) of all college students who own a car will be :
Hence, a 99% confidence interval for the true proportion of all college students who own a car : 0.332 < p < 0.490
1/8=2/16 or 4/32 or 3/24
As long as you multiply or divide by the same number to both the numerator and denominator you will get a proportional ratio
Answer:
=54.25 m^2
Step-by-step explanation:
We will assume the pool is a rectangle
A = l*w
A = (8.75) * (6.2)
=54.25 m^2
Answer: 9,2
Step-by-step explanation:
a+c=11
a=11-c
22(11-c) + 15c = 228
242-22c + 15c = 228
-7c=-14
C = 2 (two children)
Remember how a + c = 11
a + 2 = 11
A= 9
9 adults, 2 children.
One person would be shaking 3 other peoples hands.
So, there's 3 handshakes right there. No you multiply that by 4.
Which is 12. So there are 12 handshakes happening.
Hope this helps. c:
