Find out median of the following data. Marks less than 15,30,45,60,75,90 Number of Students 18,35,62,81,95,100.
Home
/
Find out median of the following data. Marks less than 15,30,45,60,75,90 Number of Students 18,35,62,81,95,100
Find out median of the following data. Marks less than 15,30,45,60,75,90 Number of Students 18,35,62,81,95,100.
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
38.33
Step-by-step explanation:
Cumulative Frequency Frequency
0- 15 18 18
15-30 35 17
30-45 62 27
45-60 81 19
60-75 95 14
75 -90 100 5
Median Will lie in 30-45
Estimated Median = L + ((n/2) − B ) × w /G
where:
L is the lower class boundary of the group containing the median = 30
n is the total number of values = 100
B is the cumulative frequency of the groups before the median group = 35
G is the frequency of the median group = 27
w is the group width = 15
30 + ( 50 - 35)*15/27
= 30 + 8.33
= 38.33