Write the following in terms of a, b and c. (a) cos θ (b) tan θ (c) sin(90° - θ)

Number of leaves = $2+4+5+6+3+1 = 21$.

Maximum value = 57.
Minimum value = 3.

The value 31 appears three times, which is more than any other value.

Minimum value = 3.
Maximum value = 57.

For $n=21$ (odd), the median is the $(\frac{n+1}{2})^{th}$ value.

The $11^{th}$ value in the sorted list is 29.

$Q_1$ is at the $\frac{1}{4}(n+1)^{th}$ position.

$Q_1$ is the average of the $5^{th}$ and $6^{th}$ values: $\frac{16+17}{2}$.

$Q_3$ is at the $\frac{3}{4}(n+1)^{th}$ position.

$Q_3$ is the average of the $16^{th}$ and $17^{th}$ values: $\frac{36+38}{2}$.