This table below gives the scores of a group of students in a Further Mathematics Test.
| Score | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Frequency | 4 | 6 | 8 | 4 | 10 | 6 | 2 |
Calculate the mean deviation for the distribution
Integrate \(\int (4x^{-3} - 7x^2 + 5x - 6) \mathrm d x\).
Find the probability that a number selected at random from 21 to 34 is a multiple of 3
If the 3rd and 7th terms of a G.P are 9 and 1/9 respectively. Find the common ratio.
If the universal set μ = {x : 1 ≤ x ≤ 20} and
A = {y : multiple of 3}
B = |z : odd numbers}
Find A ∩ B
