Number of data values: 2105
sum of the data values: 1008.08
Calculate the average (arithmetic mean) from the given number of data values and the sum of the data values.
(rounded to the nearest tenth)

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

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.