Mathematics, 08.01.2020 23:31 Rocket8025
The grades recieved by 300students follow a normal distribution. the mean of the grades is 75% and the standard deviation is 8%.a. how many students recieved a grade greater than 75%? b. how many students recieved a grade higher than 91%?
Answers: 1
Mathematics, 21.06.2019 16:20
An equation representing lyle’s hedge-trimming business is a = 12n - 300 where a is the amount of profit or loss in dollars and n is the number of hedges trimmed. how would the graph of lyle’s business change if the equation a = 10n - 300 represented his business? the graph would be flatter. the graph would be steeper. the graph would start closer to the origin. the graph would start lower on the y-axis.
Answers: 2
Mathematics, 21.06.2019 18:20
The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?
Answers: 1
Mathematics, 21.06.2019 19:00
Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?
Answers: 3
Mathematics, 21.06.2019 19:30
How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way
Answers: 1
The grades recieved by 300students follow a normal distribution. the mean of the grades is 75% and t...
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