Name: Mean of Grouped Data: Example
Uploaded: 2019-07-19
Duration: 5 min 16 s
Description: Want to find out how to calculate the mean of grouped data when the class intervals are different? Watch this interesting video and learn more!

Question

Two frequency polygons are shown giving the distribution of the weights of players in two different sports $A$ and $B$

Comment on two differences between the two frequency polygons.

Accepted Answer

From the graph we can form the table of weight and frequency for Sport $A$ ,

Weight Frequency

$55$ $0$

$60$ $4$

$65$ $8$

$70$ $14$

$75$ $16$

$80$ $10$

$85$ $6$

$90$ $4$

$95$ $0$

Total $62$

The total number of people played sport $A$ are $62$ .

For sport $B$ the table will be :

Weight Frequency

$55$ $0$

$60$ $6$

$65$ $10$

$70$ $10$

$75$ $11$

$80$ $12$

$85$ $10$

$90$ $9$

$95$ $8$

$100$ $4$

$105$ $0$

Total $80$

The total number of people played sport $B$ are $80$ .

1)From the table, we can see that more number of people play sport $B$ than sports $A$ .

2) Sport $B$ has more heavy people.

Two frequency polygons are shown giving the distribution of the weights of players in two different sports $A$ and $B$

Comment on two differences between the two frequency polygons.

Important Questions on Mean, Median and Frequency Polygon

Learn and Prepare for any exam you want !

Two frequency polygons are shown giving the distribution of the weights of players in two different sports A and B Comment on two differences between the two frequency polygons.

Important Questions on Mean, Median and Frequency Polygon

Learn and Prepare for any exam you want !

Two frequency polygons are shown giving the distribution of the weights of players in two different sports $A$ and $B$

Comment on two differences between the two frequency polygons.