SOLUTION: I do know how to get the mean and the standard deviation sort of but not the median. (i did them and this is what i got for #7 30.5 and i put that in it was wrong. #13 mean is 72 m

Algebra ->  Probability-and-statistics -> SOLUTION: I do know how to get the mean and the standard deviation sort of but not the median. (i did them and this is what i got for #7 30.5 and i put that in it was wrong. #13 mean is 72 m      Log On


   

Question 865718: I do know how to get the mean and the standard deviation sort of but not the median. (i did them and this is what i got for #7 30.5 and i put that in it was wrong. #13 mean is 72 median is 1 and SD is 12.1485 and #14 is mean is 4.05 median is 60 and SD is 1.9685.) I need to get it all done before wednesday 23rd to get it over with and thank you so much.

#7
Find the median for the following data.
Round your answer to 2 decimal places as needed.
49
2
94
54
83
96
32
75
27
26
29
14
4
41
Median =
Points possible: 1
This is attempt 1 of 3.
i need help also on the places too.
#13
The grades for 30 students on the most recent exam are given in the data table below:
Round your answer to 2 decimal places as needed
60
60
60
90
90
60
70
80
60
80
60
80
80
60
70
80
60
60
60
90
60
70
90
80
90
80
60
60
70
90
What is the mean score for the exam? 2160/30= 72 right?
What is the median score for the exam?
What is the standard deviation for the exam?
Points possible: 6
This is attempt 1 of 3.
#14
60 students were surveyed about how many nights in a week they work on homework problems in their MAT142 class. The results of the survey are shown below:
Round your answer to 2 decimal places as needed
5
3
6
2
3
2
7
1
4
6

4
2
4
5
6
6
1
3
2
7

3
1
1
5
6
3
7
5
7
6

5
5
2
4
6
4
6
5
5
3

4
1
4
1
6
3
6
6
5
1

6
1
1
6
5
7
2
4
5
1

What is the mean number of days of homework? 216/60= 3.6 right?
What is the median number of days of homework?
What is the standard deviation for days of homework?
Points possible: 6
This is attempt 1 of 3.
I need it by this friday april 25 at 11:59pm i thank you and will work on some too. i am trying to do the last on #13 and #14 but i can't its too much numbers. i will get confuse on them. so help me and thanks
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The median of a set of data is the middle term.
Procedure::
List the data from smallest to greatest.
Count the number of data elements.
The median is the middle element.
If there are an even number of elements
the median is the average of the middle
two elements.
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Cheers,
Stan H.
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