Mathematics, 06.08.2019 23:30 ledtje03

Mrs. alberts has taught seventh grade math for thirty years. every year she calculates and records the class average on the final exam. the following dot plot represents these average scores from the past thirty years.
calculate the mean of the average scores and round this value to the nearest whole number. then, calculate the mean absolute deviation of the scores (using the rounded mean) and round it to the nearest whole number, as well. express your answer as a numerical value.
mad=
what percent of the scores lie within one mean absolute deviation (either way) of the mean? round to the nearest percent and express your answer as a numerical value.
note: use the rounded mean and mean absolute deviation. %

Answers: 3

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 15:30

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem

Answers: 1

Answer

Mathematics, 21.06.2019 15:30

Angel entered a triathlon (a three-part race). he swam 1 mile, rode his bike 30 miles, and ran 10 miles. how far did he go altogether? a. 11 miles b. 123 miles c. 41 miles d. 40 miles

Answers: 1

Answer

Mathematics, 21.06.2019 15:30

Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 10.5, q1 at 11.5, median at 12.5, q3 at 13.5, max at 15

Answers: 2

Answer

Mathematics, 21.06.2019 15:30

Asquare is dilated by a scale factor of 1.25 to create a new square. how does the area of the new square compare with the area of the original square? a)the area of the new square is 1.25 times the area of the original square. b)the area of the new square is 2.50 times the area of the original square. c)the area of the new square is 1.252 times the area of the original square. d)the area of the new square is 1.253 times the area of the original square.

Answers: 1

Answer

You know the right answer?

Mrs. alberts has taught seventh grade math for thirty years. every year she calculates and records t...

Questions

Mathematics, 21.06.2019 18:30

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?...

Mathematics, 21.06.2019 18:30

Which equation represents the model shown? a)1/3 divide 1/6 = 2 b)2/3 divide 1/6 = 2/18 c)1/3 divide 1/6 = 1/18 d)2/3 divide 1/6 =4

Mathematics, 21.06.2019 18:30

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows...