Write the class-size in each of the following :
$10 - 19, 20 - 29, 30 - 39$

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Solution

Class size is $9, 9, 9$

Hence, this is the answer.

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Similar questions

Q. Write the class-size in each of the following:

(a) 0-4, 5-9, 10-14

(b) 10-19, 20-29, 30-39

(c) 100-120, 120-140, 160-180

(d) 0-0.25, 0.25-0, 0.50-0.75

(e) 5-5.01, 5.01-5.02, 5.02-5.03

Q. If the class intervals are

10 - 19, 20 - 29, 30 - 39, . . .

then the upper limit of the first class-interval is

Q. Find the actual lower class limits, upper class limits and the mid-values of the classes :

10 - 19, 20 - 29, 30 - 39

and

40 - 49

Write the class size in each of the following:
(i) 0-4, 5-9, 10-14
(ii) 10-19 - 20-29, 30-39
(iii) 100 - 120, 120-140, 160-180
(iv) 0-0.25, 0.25-0.50, 0.50-075
(v) 5-5.01, 5.01-5.02, 5.02-5.03

Q. Write the class-size in each of the following :

100 - 120, 120 - 140, 160 - 180

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Write the class-size in each of the following :10−19,20−29,30−39

Class size is 9,9,9Hence, this is the answer.

Write the class-size in each of the following :
$10 - 19, 20 - 29, 30 - 39$

Class size is $9, 9, 9$

Hence, this is the answer.