Answer:
{e}, {m}, {w}, {e,m}, {e,w}, {m,w}, {e,m,w}
-1, -35.
When you multiply two negative numbers, you get a positive result.
Answer:
Pa - Pb
Step-by-step explanation:
The mean of the distribution of sample differences will always be the difference between the population proportion, That is ; Pa - Pb ; This is because according to the central limit theorem which says the sampling distribution of sample means approaches a normal distribution as sample size gets larger irrespective if the shape of the Population distribution. Hence, the distribution of sample differences will follow a normal distribution and the mean will Hence be the difference in the population mean.
