Mathematics, 20.10.2020 04:01 joedawg50
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 did not study, rounded to the nearest tenth.
Part 2: Calculate the mean absolute deviation of the group that did not study, rounded to the nearest
tenth.
Part 3: How many of the scores (from the group that did not study) are more than two mean absolute
deviations from the mean?
Answers: 3
Mathematics, 21.06.2019 21:20
Find the least common denominator for thesetvo rational expressions.n^2/n^2+4n+4 -3/n^2+7n+10
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Mathematics, 21.06.2019 22:30
Factor the polynomial by its greatest common monomial factor.
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Mathematics, 22.06.2019 01:30
Fill in the missing exponents in each box and show how you found the answer. (4 points: 2 points for each correct answer with work shown) c. (9^4)^? =9^1 d.(5^? )^3=5^1 *question marks represent the boxes
Answers: 3
Mathematics, 22.06.2019 02:00
He trapezoid is composed of a rectangle and two triangles. what is the area of the rectangle? what is the total area of the triangles? what is the area of the trapezoid? ? a) 42 cm2; 27 cm2; 69 cm 2 b) 54 cm2; 27 cm2; 81 cm 2 c) 108 cm2; 27 cm2; 135 cm 2 d) 108 cm2; 13.5 cm2; 121.5 cm 2
Answers: 2
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