3. The marks obtained by 30 students of a class in a test out of 10 marks are as follows : 3, 5, 4, 0, 4, 3, 2, 5, 7, 9, 6, 0, 7, 4, 3, 8, 6, 9, 2, 1, 3, 4, 2, 5, 6, 7, 3, 9, 2, 8 Make a frequency distribution table for the above data, use the table to find :
Answers
Step-by-step explanation:
Question
Bookmark
The marks obtained by 30 students in a class assessment of 5 marks is given below :
Marks 0 1 2 3 4 5
Number of Students 1 3 6 10 5 5
Calculate the mean, median and mode of the above distribution.
Medium
Solution
verified
Verified by Toppr
x
f
fx cf
0 1 0 1
1 3 3 4
2 6 12 10
3 10 30 20
4 5 20 25
5 5 25 30
∑f=30 ∑fx=90
Mean =
∑f
∑fx
=
30
90
=3
Median = size of (
2
N
)th obs
n
= size of (
2
30
)th obs
n
= size of 15th obs
n
Answer:
a) highest marks are 10
lowest marks are 0
b) rage= 10
c) arithmetic mean of the marks are 6.033
Step-by-step explanation:
a) as the students scored 10 out of 10 and that's the highest
and lowest is 0 out of 10
b) in range we are suppose to so
highest mark- lowest marks = 10-0
=10
mark me brainliest