A number cube was rolled as part of an experiment. The results are in the table below. The fraction 1/x is the experimental probability of rolling a 3. What is x?

Experiment Results Number 1 2 3 4 5 6

Frequency 4 6 5 7 3 5

A. 2

B. 3

C. 5

D. 6

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.

Find the equation of the ellipse with the following properties. the ellipse with foci at (0, 6) and (0, -6); y-intercepts (0, 8) and (0, -8).edit: the answer is x^2 over 28 + y^2 over 64 = 1

Atown has a population of 17000 and grows at 2.5% every year. to the nearest year, how long will it be until the population will reach 19600?