The heights of boys and girls of IX class of a school are given below.Compare the heights of the boys and girls[Hint : Find median heights of boys and girls]
Height (cm)
135
140
147
152
155
160
Boys
2
5
12
10
7
1
Girls
1
2
10
5
6
5
Answers
Answer:
The median height of girls is more than of boys.
Step-by-step explanation:
The median height of the boys=135,135,140,140,140,140,140,147,147,147,147,147,147,147,147,147,147,147,147,152,152,152,152,152,152,152,152,152,152,155,155,155,155,155,155,155,160
The total number of observation =37
median =(n+1/2)th observation =37+1/2=38/2=19 that observation =147
hence, 147 is the median height of boys
The median height of girls=135,140,140,147,147,147,147,147,147,147,147,147,147,152,152,152,152,152,155,155,155,155,155,155,160,160,160,160,160
The total number of observation =30
median =average of (n/2) th and n/2+1 that observation
30/2 and 30/2 +1=15th and 16th observation
152+152/2=304/2=152
hence, the median height of girls is more than of boys.
Step-by-step explanation:
hope it helps
mark me as brainliest
follow me
this is ur right answer I am sure
