Answer:
He receives $4 in one day. It will take him 10 days to earn $40.
Step-by-step explanation:
Answer:
25
Step-by-step explanation:
Answer:8by-step explanation:
Step-by-step explanation:
the most common measure of how much sample mean differ from each other is the standard deviation of the sampling distribution of the mean. this standard deviation is called the standard error of the mean