Question One (1)
The following table gives the frequency distribution of average monthly expenditure (gh" '000) of a random sample of one hundred level 300 students pursuing various bachelor programmes in Engineering.
| Expenditure (x) | 58 - 62 | 63 - 67 | 68 - 72 | 73 - 77 | 78 - 82 |
| :--- | :--- | :--- | :--- | :--- | :--- |
| Frequency (f) | 15 | m | 10 | n | 10 |
Assume that the mean is "70,750.00.
a. Determine the values of m and n
b. Use the information above to determine the following
i. Mean
ii. Median
iii. Mode
iv. Variance
v. Standard deviation
vi. Coefficient of Variation
vii. Interquartile range
c. Estimate percentage of expenditure that falls within 63 and 77.
