For finding mean by assumed mean method x - a - f - d - fWhat does d and f indicate in the formula-A- Assumed mean- difference between class mark and assumed meanB- Difference between class mark and assumed mean- frequencyC- Difference between class mark and assumed mean- assumed frequencyD- Difference between class mark and assumed frequency- assumed mean

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Assumed Mean Method of Finding Mean

For finding m...

Question

For finding mean by assumed mean method

$¯ ¯ ¯ x$ = $a + \frac{(\sum f \times d)}{\sum f}$

What does $d$ and $f$ indicate in the formula?

Assumed mean, difference between class mark and assumed mean

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Difference between class mark and assumed mean, assumed frequency

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Difference between class mark and assumed mean, frequency

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Difference between class mark and assumed frequency, assumed mean

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Solution

The correct option is C Difference between class mark and assumed mean, frequency
In assumed mean method,
$¯ ¯ ¯ x = a + \frac{(\sum f \times d)}{\sum f}$

where ,

a is the assumed mean,
d is the deviation from assumed mean i.e., $x_{i} - a$ ,
f is the frequency.

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Similar questions

Q. Deviation = Class mark - assumed mean

Q. The marks scored by 5 students in a class are 25, 30, 35, 40 and 45. Find the standard deviation using Assumed mean method.

For finding mean by assumed mean method

$¯ ¯ ¯ x$ = a + $\frac{(\sum f \times d)}{\sum f}$

Find the physical representation of a,d and f.

Consider a grouped data distribution for which the mean is found by assumed mean method.

P = sum of the products of ‘d’ and frequency for each class interval

Here $d_{i} = x_{i} - A$

Q = total number of observations

A = assumed mean

M = mean of given grouped data distribution

Which of the following statements is true?

Find the mean marks per student, using assumed-mean method:
$\begin{matrix} Marks & 0 - 10 & 10 - 20 & 20 - 30 & 30 - 40 & 40 - 50 & 50 - 60 Number of students & 12 & 18 & 27 & 20 & 17 & 6 \end{matrix}$

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For finding mean by assumed mean method ¯¯¯x = a+(∑f×d)∑f What does d and f indicate in the formula?

The correct option is C Difference between class mark and assumed mean, frequencyIn assumed mean method, ¯¯¯x=a+(∑f×d)∑f where , a is the assumed mean, d is the deviation from assumed mean i.e., xi−a, f is the frequency.

For finding mean by assumed mean method

$¯ ¯ ¯ x$ = $a + \frac{(\sum f \times d)}{\sum f}$

What does $d$ and $f$ indicate in the formula?

The correct option is C Difference between class mark and assumed mean, frequency
In assumed mean method,
$¯ ¯ ¯ x = a + \frac{(\sum f \times d)}{\sum f}$

where ,

a is the assumed mean,
d is the deviation from assumed mean i.e., $x_{i} - a$ ,
f is the frequency.