Question

1. The following marks are obtained by 32 students in a Mathematics test:
70,50, 70, 56, 80, 49, 63, 73, 50, 56, 60, 60, 63, 64, 70, 76, 66, 55, 75, 65, 70, 71, 80, 81.
56, 74, 68, 66, 50, 62, 70,52​

Answer 1

Below is given some formulas according to them the answer can be find.

Step-by-step explanation:

The formulas are:

              ⇒ Mean = $\frac{sum \\ of observations}{no. of observations}$

               ⇒  Median = $\frac{no. of observations}{2}$. It is the no. of the marks which is median. But first arrange the nos. in ascending order.

               ⇒  Median = $\frac{32}{2}$ = 16

 So, 16th term is the median when they are arranged in ascending order.

Same as,   mean = $\frac{1966}{32}$ = 61.4375.

Answer 2

Answer:

⇒ Median = \frac{32}{2}

2

32

= 16

So, 16th term is the median when they are arranged in ascending order.

mean = \frac{1966}{32}

32

1966

= 61.4375.