Tina has 4 black marbles, 6 red marbles, 3 blue marbles, 7 green marbles, and 5 yellow marbles. she places all of the marbles in a bag and randomly selects one. find the theoretical probability that tina will randomly select a yellow marble. express this in the form of a fraction in the simplest form.

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

What is the slope of the line that contains the points (-2,1) and (0,-3)