• Math

  Class 7: Data Handling

  Posted by Aryan on June 23, 2023 at 4:21 pm

  The weights (in kg) of 10 students are as follows:

  42, 38, 45, 50, 43, 47, 55, 39, 48, 41.

  Find the range, mean, and median of the weights.

  Dev replied 1 year, 3 months ago 2 Members · 1 Reply
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  Dev

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  June 23, 2023 at 4:39 pm

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  To find the range, mean, and median of the given weights, we need to arrange them in ascending order first:

  38, 39, 41, 42, 43, 45, 47, 48, 50, 55

  Range = Highest Value – Lowest Value

  = 55 – 38

  = 17

  Mean: To find the mean, we sum up all the values and divide by the total number of values.
  

  Mean = (38 + 39 + 41 + 42 + 43 + 45 + 47 + 48 + 50 + 55) / 10

  = 448 / 10

  = 44.8

  Median: The median is the middle value in a sorted set of numbers. If there is an even number of values, the median is the average of the two middle values.

  Median = (43 + 45) / 2

  = 44

  Therefore, the range of the weights is 17 kg, the mean is 44.8 kg, and the median is 44 kg.

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