Statistics for Decision-Making Final Exam Summer 2025
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Q1
a)
Define the following terms (i) Probability, (ii) Sample space.
[CLO-1, L-1]
2
b)
Explain the concept of the Central Limit Theorem (C.L.T) and state
its properties.
[CLO-2, L-2]
3
Q2
The following table lists the probability distribution of the number
of breakdowns per week for a machine based on past data
| Breakdowns Per Week | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Probability | 0.11 | 0.08 | 0.14 | 0.20 | 0.10 | 0.12 | 0.13 | 0.12 |
a)
Demonstrate this probability distribution graphically.
[CLO-2, L-2]
2
b)
Utilize the above table find the probability that the number of
breakdowns for this machine during a given week is
i. exactly 7 breakdowns; ii. 0 to 4 breakdowns; iii. more than 1
breakdown; iv. at most 4 breakdown
[CLO-3, L-3]
4
Q3
Suppose all 100 employees of a company were asked whether they
are in favor of paying high salaries to CEOs of US companies. The
following table shows the response of these 100 employees.
In Favor
Against
Male
15
45
Female
4
36
a)
Solve the following conditional probability
i. P(In Favor | Female)
ii. P(Against | Male)
iii. P(Male | In Favor)
iv. P(Female | Against)
[CLO-3, L-3]
6
b)
Select whether the events 'Male' and 'Female' are mutually
exclusive?
[CLO-3, L-3]
1
Q4
A marketing team sends out promotional emails to potential
customers. From past data, the probability that a recipient opens the
email is 0.4. If the team sends emails to 8 customers. Applying
binomial probability distribution, find the probability-
a)
Exactly 3 customers open the email.
[CLO-3, L-3]
2
b)
At most 2 customers open the email.
[CLO-3, L-3]
2
c)
At least 7 customers open the email.
[CLO-3, L-3]
2
How to Use This Paper
Statistics for Decision-Making Final Exam Summer 2025 is archived for Statistics for Decision-Making (0542-213) so DIU BBA students can review the actual exam format before sitting for a similar assessment. Use it to identify the marks distribution, repeated chapter areas, and the style of short-answer, analytical, or case-based questions used in Summer 2025 for Batch BBA 66.
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The course code for Statistics for Decision-Making at DIU BBA is 0542-213.
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You can download Statistics for Decision-Making Final Exam Summer 2025 for Statistics for Decision-Making (0542-213) from the DIU BBA Archive. This question is from the Summer 2025, Batch BBA 66.
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