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Studentβs Name
Studentβs ID
Section/CRN
Location
Marking Scheme
Question
Score
Q-1
3
Q-2
3
Q-3
3
Q-4
3
Q-5
3
Q-6
3
Total
18
Obtained Score
Note: You are required to fill your full name, ID and CRN.
Solve the following questions
π Γ π ππππ = ππ ππππ
1. Construct a cumulative frequency distribution of the 20 brain volumes(cm3) listed below.
Use the classes 900-999, 1000-1099, and so on. (6-classes)
1005 963 1035 1027 1281 1272 1051 1079 1034 1070 1173 1079 1067 1104 1347 1439
1029 1100 1204 1160.Also find relative frequency for each class interval?
Solution:
2. Use data above in question 1 to build the frequency polygon. Is the distribution symmetric?
Solution:
3. Find the mean, mode, median, variance, Standard Deviation, and range of the following data:
1
2
3
4
5
4
5
6
7
8
Solution:
2
1
3
4
1
4. Find the mean and the Variance of the following sample data:
x
1
2
4
8
12
Frequency (f)
5
6
9
6
4
Solution:
5. Two dice with six faces are rolled, find the sample space and number of elements in the
sample space. Also calculate the probability that the sum of the two faces is equal 6.
Solution:
6. Use the Prison and Plea data in following table to calculate part a and b :
Guilty Plea
Plea of not Guilty
Sentenced to Prison
Not Sentenced to Prison
392
564
58
14
a. If someone from the 1028 subjects is randomly selected, find the probability of selecting
someone sentenced to prison.
b. If someone from the 1028 subjects is randomly selected, find the probability of selecting
someone sentenced to prison and entered a Guilty Plea.
Solution
...

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Tutor went the extra mile to help me with this essay. Citations were a bit shaky but I appreciated how well he handled APA styles and how ok he was to change them even though I didnt specify. Got a B+ which is believable and acceptable.

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