on a track and field team, 8% of the members run only long-distance, 32% compete only in field events, and 12% are sprinters only. find the probability that a randomly chosen team member runs only long-distance or competes only in field events.

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.

Hurry the figure shows the front side of a metal desk in the shape of a trapezoid.what is the area of this trapezoid? 10 ft²16 ft²32 ft²61 ft²

For what values of a is the sum of the fractions 2a−1 / 4 and a−1 /3 positive?