The scores on a psychology exam were normally distributed with a mean of
63
63 and a standard...
Mathematics, 16.06.2020 05:57 am2016832
The scores on a psychology exam were normally distributed with a mean of
63
63 and a standard deviation of
6
6. A failing grade on the exam was anything 2 or more standard deviations below the mean. What was the cutoff for a failing score? Approximately what percentage of the students failed?
Answers: 3
Mathematics, 21.06.2019 17:00, sciencecreation87
Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.
Answers: 1
Mathematics, 21.06.2019 18:20, Karamatullah
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 21:30, jbismyhusbandbae
100 points? me its important ‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️
Answers: 1
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