Mathematics, 20.10.2020 04:01 LuluMathLover101
A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claimed
they had studied at least one hour for the test. The remaining twelve students admitted that they had not
studied for the test at all. The test results (expressed as a percent) for the two groups are shown below.
Studied: 87, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 83
Did Not Study. 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89
Part 1: Calculate the mean of the group that studied, rounded to the nearest tenth.
Part 2: Calculate the mean absolute deviation of the group that studied, rounded to the nearest tenth.
Part 3: How many of the scores (from the group that studied) are within one mean absolute deviation of
the mean.
Answers: 3
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Mathematics, 21.06.2019 20:00
Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.
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Aboat has a speed of 9 mph in calm water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current? 2(9 – c) = 4(9 + c) 9 + c = 4(9 – c) 9 – c = 2(9 + c) 4(9 – c) = 2(9 + c)
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Mathematics, 22.06.2019 05:00
Aubrey read 29 books and eli read 52 books what number equals to the number of books aubrey read
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A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claime...
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