subject
History, 10.04.2020 21:53 hellicuh

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?

ansver
Answers: 1

Another question on History

question
History, 21.06.2019 17:30
In one to two paragraphs, compare and contrast the american, french, and mexican revolution.
Answers: 1
question
History, 21.06.2019 22:50
How did philip ii view the religious rights of protestant citizens in his empire
Answers: 1
question
History, 21.06.2019 23:00
How did margaret thatcher de-escalate the cold war
Answers: 1
question
History, 22.06.2019 04:00
What does the declaration of independence say about rights
Answers: 1
You know the right answer?
A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claime...
Questions
question
Mathematics, 06.11.2020 06:50
question
Mathematics, 06.11.2020 06:50
question
Social Studies, 06.11.2020 06:50
question
Biology, 06.11.2020 06:50
question
Mathematics, 06.11.2020 06:50
question
Social Studies, 06.11.2020 06:50
Questions on the website: 13722362