Identify the resulting probability as theoretical or experimental. one-half of the people in a chess club are adults 21 years old or older. the other half are younger. what is the probability that a club member chosen at random will be under 21 years old?
a. the experimental probability is 50%.
b. the experimental probability is 75%.
c. the theoretical probability is 75%.
d. the theoretical probability is 50%.

The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jason’s friend’s statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friend’s statement is accurate. the average hourly earnings will increase by 2%. b. his friend’s statement is not accurate. the percent increase will be more than 2% c. his friend’s statement is not accurate. the percent increase will be less than 2% d. his friend’s statement is not accurate. the average hourly earnings will decrease

What makes a trapezoid an isosceles trapezoid?

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol