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Graded Discussion Board (GDB) 1. Compute the Mean, Median and Mode by using the data given below and compare their results. What is the appropriate measure of central tendency for this data? X = 31 42 28 45 31 42 26 56 33 42 2. Calculate the median, lower quartile and upper quartile of the following data set of scores: 18 20 23 20 23 27 24 23 29 Instructions: (1) Post your solution on Graded MDB and not on Regular Lecture MDB. (2) Zero marks will be given to copied or irrelevant comments. (3) The solution should be clear and to the point. (4) Do not participate in the discussion more than once. (5) No extra time will be given for discussion. (6) You cannot participate in the discussion after due date or through e-mail. (7) Properly prepare yourself about the topic using books or any source available to you. |
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compare their results. What is the appropriate measure of central tendency for this data?
You have to compare results like this:
Comparing Results:
Mode > Mean > Median
Or you can compare by writing numerals.
MTH302 - Business Mathematics & Statistics GDB No. 3 Solution Fall 2015 Due Date Monday, January 25, 2016
Total Marks | 5 |
Starting Date | Friday, January 22, 2016 |
Closing Date | Monday, January 25, 2016 |
Status | Open |
Question Title | Questions for Graded Discussion Board. |
Question Description | Questions for Graded Discussion Board
1. Compute the Mean, Median and Mode by using the data given below and compare their results. What is the appropriate measure of central tendency for this data? X = 31 42 28 45 31 42 26 56 33 42 2. Calculate the median, lower quartile and upper quartile of the following data set of scores: 18 20 23 20 23 27 24 23 29 Instructions: (1) Post your solution on Graded MDB and not on Regular Lecture MDB. (2) Zero marks will be given to copied or irrelevant comments. (3) The solution should be clear and to the point. (4) Do not participate in the discussion more than once. (5) No extra time will be given for discussion. (6) You cannot participate in the discussion after due date or through e-mail. (7) Properly prepare yourself about the topic using books or any source available to you |
1. Compute the Mean, Median and Mode by using the data given below and compare their results. What is the appropriate measure of central tendency for this data?
X = 31 42 28 45 31 42 26 56 33 42
Solution=
Mean=
X=
X=
37.6
Median= Arrange the data set.
26,28,31,31,33,42,42,42,45,56
37.5
Mode=
The most repeated word is 42
2. Calculate the median, lower quartile and upper quartile of the following data set of scores:
18 20 23 20 23 27 24 23 29
Solution=
Arrange the values in ascending order of magnitude:
There are 9 value in the data set.
N=9
Now Median= the value
=5
5th value of data set
23
Lower Quartile= the value
2.5 the value
(Average the 2nd and 3rd value of date set)
20
Upper Quartile = the value
7.5 the value
(Average the 7th and 8th value of data set)
25.5
Interquartile range=Upper quartile –Lower quartile
25.5 – 20
5.5
This mean is middle 50% of data value range from 20 to 25.5
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