subject
Mathematics, 16.03.2022 06:10 Katelynn7086

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 studied, rounded to the nearest tenth.

Part 2: Calculate the mean absolute deviation of the group that studied, rounded to the nearest tenth.

Part 3: How many of the scores (from the group that studied) are within one mean absolute deviation of the mean.

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 18:00
What is the solution of log2  (3x  -  7)  =  3? 4 5
Answers: 1
question
Mathematics, 21.06.2019 18:30
The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?
Answers: 3
question
Mathematics, 21.06.2019 22:50
Which will form a composite function?
Answers: 1
question
Mathematics, 21.06.2019 23:00
Find the dimensions of the circle. area = 64π in.² r= in.
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, 16.09.2021 22:30
question
Mathematics, 16.09.2021 22:30
question
English, 16.09.2021 22:30