Question

construt class intervals and frequnciesfor the following disgribution table. also draw the or give curves for the same .
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Answer 1

Answer:

If 2/5 are boys then 3/5 are girls

These added together equal 5/5 which is the total number in the class ( 45 in this example )

45 divided by 5 equals 9

3 fifths would be 3 x 9 = 27 girls

The other way is to let x = number of girls

multiply 45 ( total # students) by (3/5)

x = 45 (3/5)

x = 135/5 = 27 girls

Answer 2

interval no.of students

(class) (frequency)

1. 0 - 5. 02
2. 5 - 10. 06
3. 10 - 15. 10
4. 15 - 20. 09
5. 20 - 25. 08