Answer:
The answer for the question is -1.5
3:8 - 3:8
8:6 - 4:3
4:8 - 1:2
I would say that the answer is 1:2
She needs 27 crates to make 7 steps. It makes more sense if you draw it out for yourself.
Answer:
x=2
Step-by-step explanation:
hope this helps :)
Answer:
(0.4958, 0.7422)
Step-by-step explanation:
Let p be the true proportion of water specimens that contain detectable levels of lead. The point estimate for p is 
. The estimated standard deviation is given by 
. Because we have a large sample, the 90% confidence interval for p is given by 
where 
is the value that satisfies that above this and under the standard normal density there is an area of 0.05. So, the confidence interval is 
, i.e., (0.4958, 0.7422).
