| Age in years | 10 - 14 | 15 - 19 | 20 - 24 | 25 - 29 | 30 - 34 |
| Frequency | 6 | 8 | 14 | 10 | 12 |
Find the mean of the distribution.
23.4
23.6
24.3
24.6
Correct answer is B
| Age in years |
Classmark (x) |
Frequency (f) |
fx |
| 10 - 14 | 12 | 6 | 72 |
| 15 - 19 | 17 | 8 | 136 |
| 20 - 24 | 22 | 14 | 308 |
| 25 - 29 | 27 | 10 | 270 |
| 30 - 34 | 32 | 12 | 384 |
| Total | 50 | 1170 |
\(Mean = \frac{\sum fx}{\sum f}\)
= \(\frac{1170}{50} = 23.4\)
Evaluate \(\begin{pmatrix} 2 & 3 \\ 4 & 1 \end{pmatrix} \begin{pmatrix} 2 \\ 3 \end{pmatrix}...
Given that \(f(x) = 2x^{3} - 3x^{2} - 11x + 6\) and \(f(3) = 0\), factorize f(x)...
Express cos150° in surd form. ...
Consider the statements: x: The school bus arrived late y: The student walked down to school Whic...
Evaluate \(\int_{-1}^{1} (x + 1)^{2}\mathrm {d} x\). ...
The table shows the distribution of the distance (in km) covered by 40 hunters while hunting. Wha...
Find the area between line y = x + 1 and the x-axis from x = -2 to x = 0. ...