The distribution of weight of female college cross country runners is approximately normal with mean 122 pounds and standard deviation 8 pounds which of the following is closest to the percent of the runners way between 114 pounds in 138 pounds

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

Which expression is equivalent to -12(3x-3/4)