The mean grades of 30 students in both math and science is 85. if the mean absolute deviation of the grades in math is 1 and the mean absolute deviation for the grades in science is 8, which of the following staements are true?

a. the students scored higher grades in math than science
b. the grades of the students in science are a lot closer to 85 than the grades of the students in math.
c. the grades of the students in math are a lot closer to 85 than the grades of the students in science.
d. the students scored lower grades in math than in science

Ambitious

Mean absolute deviation is associated to the precision of the datasets acquired from the experiment. In this case, if the deviation increases, then the degree of variation also increases. The answer to this problem hence is C. The grades of the students in math are a lot closer to 85 than the grades of the students in science

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Mean absolute deviation is associated to the precision of the datasets acquired from the experiment. In this case, if the deviation increases, then the degree of variation also increases. The answer to this problem hence is C. The grades of the students in math are a lot closer to 85 than the grades of the students in science

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Step-by-step explanation:

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17

ratios represent a pattern or relationship that can be scaled.

equivalent ratios are pairs of ratios that represent the same relationship between quantities, and can be generated by multiplying or dividing both quantities in the ratio by the same factor.

in this lesson, students will use double number lines and ratio reasoning to solve ratio problems. by partitioning double number lines into proportionate intervals, students will build an understanding of equivalent ratio relationships as those that are generated by multiplying or dividing two related quantities by the same number. this lesson will build upon students' prior understanding of multiplicative comparisons, number line reasoning and equivalent fractions (while highlighting the difference between equivalent fractions and equivalent ratios); and will build toward future work in this unit on building ratio tables, and work in future grades in proportionality, scaling, and expressing and graphing linear functions.

step-by-step explanation:

ratios represent a pattern or relationship that can be scaled.

equivalent ratios are pairs of ratios that represent the same relationship between quantities, and can be generated by multiplying or dividing both quantities in the ratio by the same factor.

in this lesson, students will use double number lines and ratio reasoning to solve ratio problems. by partitioning double number lines into proportionate intervals, students will build an understanding of equivalent ratio relationships as those that are generated by multiplying or dividing two related quantities by the same number. this lesson will build upon students' prior understanding of multiplicative comparisons, number line reasoning and equivalent fractions (while highlighting the difference between equivalent fractions and equivalent ratios); and will build toward future work in this unit on building ratio tables, and work in future grades in proportionality, scaling, and expressing and graphing linear functions.