Mark the correct alternative in each of the following:
Tally marks are used to find

(a) class intervals

(b) range

(c) frequency

(d) upper limits

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Solution

Tally marks are used to find the frequencies.

Hence, the correct choice is (c).

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Question 29

Tally marks are used to find
(a) class intervals
(b) range
(c) frequency
(d) upper limit

Question 29

Tally marks are used to find
(a) class intervals
(b) range
(c) frequency
(d) upper limit

The following are the marks obtained in Maths by students of Class 8:
51, 94, 34, 20, 50, 81, 81, 90, 76, 34, 51, 86, 93, 99, 26, 54, 85, 71, 88, 40, 44, 56, 55, 57, 78, 53, 81, 78, 65, 78.
The data have to be grouped to find the mean marks.
One of the class intervals made is 60-70.
How many such class intervals should be prepared?
What is the frequency of the last class interval?
What are the upper and the lower limits of the first class interval?
What is $\sum f_{i}$ ?

Q. For drawing a frequency polygon of a continuous frequency distribution, we plot the points whose ordinates are the frequencies of the respective classes and abscissae are respectively
(a) upper limits of the classes
(b) lower limits of the classes
(c) class marks of the classes
(d) upper limits of preceding classes

Q. Assertion: We find mid points of a class interval as upper as

\frac{u p p e r c l a s s l i m i t + l o w e r c l a s s l i m i t}{2}

Reason: To draw frequency polygons independently without drawing histogram it is required to have class mark.
Which of the following is correct

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Mark the correct alternative in each of the following: Tally marks are used to find (a) class intervals (b) range (c) frequency (d) upper limits

Tally marks are used to find the frequencies. Hence, the correct choice is (c).

Mark the correct alternative in each of the following:
Tally marks are used to find

(a) class intervals

(b) range

(c) frequency

(d) upper limits

Tally marks are used to find the frequencies.

Hence, the correct choice is (c).