In the formula x̄ = a + (Σxᵢdᵢ)/(Σfᵢ) for finding the mean of grouped data dᵢ's are the deviations from a of

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MCQ (Single)Mean of Grouped Data Using Assumed Mean Method

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To calculate mean of a grouped data, Rahul used assumed mean method. He used d = (x – A), where A is assumed mean. Then x̄ is equal to

MCQ (Single)Mean of Grouped Data Using Assumed Mean Method

To calculate mean of a grouped data, Rahul used assumed mean method. He used d = (x - A), where A is assumed mean. Then x̄ is equal to

MCQ (Single)Mean of Grouped Data Using Assumed Mean Method

The arithmetic mean of the following frequency distribution is 53. Find the value of k.

TextMean of Grouped Data Using Assumed Mean Method

The mean of the following data is 42. Find the missing frequencies x and y if the sum of frequencies is 100.

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The following frequency distribution gives the monthly consumption of electricity of 68 consumers of a locality. Find the monthly mean consumption from the data.

TextMean of Grouped Data Using Direct MethodMean of Grouped Data Using Assumed Mean Method

The following distribution shows the weekly pocket allowance (in ₹) of some children of a locality. The mean pocket allowance is ₹ 180. | Weekly Pocket Allowance (in ₹) | Number of Children | |-------------------------------|--------------------| | 110 – 130 | 7 | | 130 – 150 | 6 | | 150 – 170 | 9 | | 170 – 190 | 13 | | 190 – 210 | f | | 210 – 230 | 5 | | 230 – 250 | 4 | Find the value of f. Hence find the mode of given data.

TextMean of Grouped Data Using Assumed Mean MethodMode of Grouped Data