Question

5. The marks obtained (out of 10) by 30 students of a class are as follows: 4.6.7.5.8.3.0.10.9.5.8.7.8
3.5,4,7,9,6,10, 2.8.9.8.6.5.4.1.6.8.
a. Find the highest and lowest marks obtained by the students of the class.
. Find the range of the given data.
c. Calculate the arithmetic mean of the marks.​

Answer 1

Answer:see below

Step-by-step explanation:

A=10,0

B=10-0=10

C=182/30=91/15=6.0666...

Answer 2

Answer:a. highest marks= 10

lowest marks= 0

b. range= max. -min. = 10-0=10

c. arithmetic mean= sum of observations/no. of observations

=4+6+7+5+8+3+0+10+9+5+8+7+8+3+54+7+9+6+10+2+8+9+8+6+5+4+1+6+8 divide by 30= 181/30 = 6.03 (approx)