PROBABILITY & STATISTICS – EXAM
N3
First-Year University Level
Fully Solved Exam
Includes exercises on descriptive statistics
probability, and normal distribution
, EXERCISE 1 – DESCRIPTIVE STATISTICS
Problem:
Given the following data set:
4, 6, 8, 10, 12
Solution:
Mean = (4 + 6 + 8 + 10 + 12) / 5
Mean = = 8
Median = middle value of the ordered data
Median = 8
Mode = most frequent value
There is no mode because no value is repeated.
EXERCISE 2 – VARIANCE AND STANDARD DEVIATION
Problem:
Using the same data set from Exercise 1, calculate the variance
and standard deviation.
N3
First-Year University Level
Fully Solved Exam
Includes exercises on descriptive statistics
probability, and normal distribution
, EXERCISE 1 – DESCRIPTIVE STATISTICS
Problem:
Given the following data set:
4, 6, 8, 10, 12
Solution:
Mean = (4 + 6 + 8 + 10 + 12) / 5
Mean = = 8
Median = middle value of the ordered data
Median = 8
Mode = most frequent value
There is no mode because no value is repeated.
EXERCISE 2 – VARIANCE AND STANDARD DEVIATION
Problem:
Using the same data set from Exercise 1, calculate the variance
and standard deviation.
