Mode of Grouped Frequency Distribution
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Q.
Find the mode of the given data.
Class Frequency 0−52005−1025010−1522515−2030020−25275
- 18.25
- 18.5
- 19.75
- 18.75
Q.
The marks obtained by the sudents of a class, in an exam which was out of 50 marks, is given below.
Marks Number of students5172112163215246283325348396434452493 [4 MARKS]
(i)Find mode for the ungrouped data.
(ii) Represent the same as grouped data, with class intervals of width = 10 and find the mode for the grouped data.
Q. If the preceding and succeeding classes of the modal class have the same frequency, then the mode will be the _______ .
- midpoint of the modal class
- upper limit of the modal class
- lower limit of the modal class
- midpoint of the preceding class
Q. What is the slope of the line joining the points (x1, y1) and (x2, y2)?
- y1x2−x1
- y2−y1x2−x1
- y2x1−x2
- y2x2
Q. The following is the formula for finding the mode of grouped data. State what p and q are.
Mode=p+q−f0(q−f0)+(q−f2)×h
Mode=p+q−f0(q−f0)+(q−f2)×h
- p = l, lower limit of modal class; q=f1, frequency of modal class
- p = l, middle value of modal class; q=f1, frequency of modal class
- p = l, size of class interval; q=f1, frequency of modal class
- p = l, slope; q=f1, frequency of lower class
Q. Identify the modal class, the upper limit of the modal class and the lower limit of the modal class for the given data:
Age(in years)5−1515−2525−3535−4545−5555−65Number of patients6112123145
Age(in years)5−1515−2525−3535−4545−5555−65Number of patients6112123145
- 15-55, 11, 31
- 35-45, 35, 45
- 15-25, 11, 21
- 35-45, 45, 35
Q. Find the mode of the given data.
Class Frequency 0−52005−1025010−1522515−2030020−25275
Class Frequency 0−52005−1025010−1522515−2030020−25275
- 18.75