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What is the mean of the following heights: 138 cm, 140 cm, 136 cm, 141 cm, 142 cm, 137 cm?
  • a)
    140 cm
  • b)
    138 cm
  • c)
    141 cm
  • d)
    139 cm
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
What is the mean of the following heights: 138 cm, 140 cm, 136 cm, 141...
The mean is calculated by summing all values and dividing by the number of values: (138 + 140 + 136 + 141 + 142 + 137) = 834, then 834 ÷ 6 = 139 cm. The mean provides an overall average, which can summarize data effectively for comparison.
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