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Question

The following is the formula for finding the mode of grouped data. State what p  and q are.
Mode=p+qf0(qf0)+(qf2)×h


Correct Answer
A
p = l, lower limit of modal class; q=f1, frequency of modal class
Your Answer
B
p = l, middle value of modal class; q=f1, frequency of modal class
Your Answer
C
p = l, size of class interval; q=f1, frequency of modal class
Your Answer
D
p = l, slope; q=f1, frequency of lower class

Solution

The correct option is A p = l, lower limit of modal class; q=f1, frequency of modal class
The formula for mode is given by,
Mode=l+f1f0(f1f0)+(f1f2)×h,where,
l = lower limit of modal class
h = size of class interval
f1 = frequency of modal class
f0 = frequency of class preceding modal class
f2 = frequency of class succeeding modal class

So, p = l = lower limit of modal class
And, q = f1 = frequency of modal class.

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