Question

03 The markas out of 100) obtained by a group of
students in mathematich test are 85, 76, 90,84,39
48,36, 95,81, 73. Find the
Range of marks ; Mean marks​

Answer 1

Answer:

Range of marks= 59

Mean marks= 70.7

Step-by-step explanation:

Range= (Value of highest observation)-(Value of lowest observation)

= 95-36

= 59.

Mean = (Sum of observations)/(Number of observations)

= (85+76+90+84+39+48+36+95+81+73)/10

= 707/10

= 70.7