Answer:
nice
Step-by-step explanation:
Answer:
The range is 5
Step-by-step explanation:
7-2=5
Answer:
We are given the below probability distribution table:
x P(x)
100 0.180
200 0.051
300 0.227
400 0.113
500 0.090
600 0.099
700 0.165
800 0.075
Now to find the mean, we have to use the below formula:
Therefore, the mean is
3097 is the value you get when rounded off to nearest whole number
Answer:
Step-by-step explanation:
If repeated sample sizes of large sizes are taken at random, and proportion P is calculated for samples the sample mean will have a normal distribution irrespective of the original distribution.
In other words, the sample proportion will follow a normal distribution with mean = p-hat and std deviation =
This is a direct corrollary of central limit theorem for sample means.
Hence we have irrespective of sample size, sample proportion will have expected value same as p-hat.
So whether sample size is 500 or 100 the p hat will have the same distribution.