For some data x₁, x₂, ...... xₙ with respective frequencies f₁, f₂, ..... fₙ, the value of Σfᵢ(xᵢ − x̄) from i=1 to n is equal to :

Mean of Grouped Data Using Direct Method | PadhAiPro

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MCQ (Single)Mean of Grouped Data Using Direct MethodCBSE PYQ

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The following table gives the daily income of 50 cab drivers of a particular city : | Income (₹) | 500 - 600 | 600 - 700 | 700 - 800 | 800 - 900 | 900 - 1000 | | No. of Drivers | 12 | 14 | 8 | 6 | 10 | Find the mean income and the modal income.

TextMean of Grouped Data Using Direct MethodModal Class in Grouped Frequency DistributionFormula for Mode of Grouped Data

During a medical checkup, height of 35 students of a class were recorded as follows : Height (in cm): 90-100, 100-110, 110-120, 120-130, 130-140, 140-150 Number of Students: 3, 2, 4, 5, 14, 7 Find the difference between the mean height and median height.

TextMean of Grouped Data Using Direct MethodFormula for Median of Grouped Data

Medical check-up was carried out for 35 students of a class and their weights were recorded as follows : Weight (in kg): 38-40, 40-42, 42-44, 44-46, 46-48, 48-50, 50-52 Number of Students: 3, 2, 4, 5, 14, 4, 3 Find the difference between the mean weight and the median weight.

TextMean of Grouped Data Using Direct MethodFormula for Median of Grouped Data

Following table shows the absentees record of 40 students in an academic year :

CASE_STUDIESMean of Grouped Data Using Direct MethodMode of Grouped DataModal Class in Grouped Frequency Distribution

If the mean of 2, 9, x+6, 2x+3, 5, 10, 5 is 7, then the value of x is :

MCQ (Single)Mean of Grouped Data Using Direct Method

The India Meteorological Department observes seasonal and annual rainfall every year in different sub-divisions of our country. It helps them to compare and analyse the results. The table below shows sub-divisions wise seasonal (monsoon) rainfall (in mm) in 2023. Rainfall (mm) | No. of Sub-divisions 200 – 400 | 3 400 – 600 | 4 600 – 800 | 7 800 – 1000 | 4 1000 – 1200 | 3 1200 – 1400 | 3 Based on the information given above, answer the following questions :

CASE_STUDIESMean of Grouped Data Using Direct MethodMode of Grouped DataModal Class in Grouped Frequency DistributionMedian of Grouped DataFormula for Median of Grouped Data