Answer:
4.24
Step-by-step explanation:
round the hundredths place according to the thousandths place
if the thousandths place (in this case 9) is 5 or greater, round the hundredths place up
if the thousandths place is less than 5, keep the hundredths place the same number
Answer: the standard deviation of the means (D)
Step-by-step explanation:
He worked 30 hours in total