URGENT Match each interval about the mean in a normal distribution with the percentage of data values in that interval.
Tiles
within one standard deviation of the mean
within two standard deviations of the mean
within three standard deviations of the mean
Pairs
95% of the data
99.7% of the data
68% of the data

Astore sells two types of radios. one type sells $87 and the other for $119. if 25 were sold and the sales were $2495, how many of the $87 radios were sold a) 5 b) 20 c) 15 d)10

If square root x = -7, then x= -49 true or false

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.