Mathematics
Mathematics, 24.04.2021 06:30, bounce76

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?​

answer
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 14:30, hollis79
Find the balance at the end of 4 years if 1000 is deposited at the rate of
Answers: 1
image
Mathematics, 21.06.2019 18:00, leianagaming
Describe the relationship between the angles of similar triangles and the sides of similar triangles
Answers: 1
image
Mathematics, 21.06.2019 18:30, jessieeverett432
It says factor each expression 49x-28?
Answers: 1
image
Mathematics, 21.06.2019 18:30, keeks11
If the value of x increases by 5, how does the value of m(x + 3) change? a) it increases by 5m. b) it increases by 8m. c) it decreases by 5m. d) it decreases by 8m.
Answers: 1
Do you know the correct answer?
A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claime...

Questions in other subjects:

Konu
Mathematics, 13.04.2021 02:40