A normal distribution having a mean of 50 and a standard deviation of 10. Report your calculated probabilities to 4 figures behind the decimal.

What is the probability a random selection from this distribution would result in a value above 72?

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.

Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?