Question 91

Following are the numbers of members in 25 families of a village :6, 8, 7, 7, 6, 5, 3, 2, 5, 6, 8, 7, 7, 4, 3, 6, 6, 6, 7, 5, 4, 3, 3, 2, 5 Prepare a frequency distribution table for the data using class intervals 0-2, 2-4 etc.

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Q. The following data gives the marks of 20 students in Mathematics (X) and statistics (Y), each out of 10, expressed as (x, y). Construct an ungrouped frequency distribution, considering single numbers as a class:

(2, 7), (3, 8), (4, 9), (2, 8), (5, 6), (5, 7), (4, 9), (3, 8), (4, 8), (2, 9), (3, 8), (4, 8), (5, 6), (4, 7),

(4, 7), (4, 6), (5, 6), (5, 7), (4, 6), (5, 5).

Q. Convert the following data into grouped frequency distribution:

3, 4, 5, 6, 6, 5, 4, 3, 2, 2, 2, 1, 7, 7, 8, 2

Q. The following data represent the number of hours of playing per week (

X

) for

25

people.

3, 4, 6, 1, 2, 6, 6, 4, 3, 1, 3, 6, 7, 8, 1, 5, 8, 9, 5, 9, 4, 3, 7, 1, 7

.
Picture the following data into ungrouped frequency table.

John took thirty different quizzes with ten questions each.
The number of questions answered correctly each time was as follows:

4, 2, 6, 8, 3, 5, 5, 3, 6, 6, 7, 4, 3, 10, 5, 4, 9, 7, 6, 3, 8, 8, 4, 4, 5, 3, 6, 4, 7, 9

Construct the frequency distribution table using tally marks to find out how many quizzes he scored 8 or more?

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9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 7 6 5 4 3 2 1

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Question 91 Following are the numbers of members in 25 families of a village :6, 8, 7, 7, 6, 5, 3, 2, 5, 6, 8, 7, 7, 4, 3, 6, 6, 6, 7, 5, 4, 3, 3, 2, 5 Prepare a frequency distribution table for the data using class intervals 0-2, 2-4 etc.

Question 91

Following are the numbers of members in 25 families of a village :6, 8, 7, 7, 6, 5, 3, 2, 5, 6, 8, 7, 7, 4, 3, 6, 6, 6, 7, 5, 4, 3, 3, 2, 5 Prepare a frequency distribution table for the data using class intervals 0-2, 2-4 etc.