Household Income (thousands)
23
74
50
49
67
34
105
59
40
48

The household incomes for 10 different households are shown. What is the mean absolute deviation for the group (round to the nearest tenth)?

A)
5.49

B)
17.1

C)
54.9

D)
170.8

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Acircle has a circumference of 28.36 units what is the diameter of the circle

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.