Question

14. The following are the heights (in cm) of some girls. Prepare the table using tally marks and then
draw a pictograph using one symbol for 3 girls.
149 147 145 149 151 151 149 149 153 151 151 147
149
151 149 147 149 153 151 149 149 149 151 153 147 147
153 153 151 149 151 147 153 145 145 149 153 153
(a) How many girls have maximum height?
(b) How many girls have minimum height?
(c) Find the ratio of girls with height 147 cm to those with height 149 cm.
(d)
Find the range



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Answer 1

Answer:

here is your answer mate !!

Explanation:

The number of members in 20 families are given below:

4, 6, 5, 5, 4, 6, 3, 3, 5, 5, 3, 5, 4, 4, 6, 7, 3, 5, 5, 7.

Prepare a frequency distribution of the data.

ANSWER:

First, we will arrange the data in increasing order.

3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 7, 7

Frequency table of the above data:

Number of members Tally marks Number of families (frequency)

3 |||| 4

4 |||| 4

5 |||| || 7

6 ||| 3

7 || 2

Total 20

Answer 2

Answer:

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