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Statistics question

2021 · 20 Jul · Shift 2 · Q34
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  5. /2021 · 20 Jul · Shift 2 · Q34

Statistics question

2021 · 20 Jul · Shift 2 · Q34

JEE MainMathematicsStatisticsMCQ+4 / −1
If the mean and variance of six observations 7, 10, 11, 15, a, b are 10 and 203{{20} \over 3}320​, respectively, then the value of | a −-− b | is equal to :
  1. A
    9
  2. B
    11
  3. C
    7
  4. D
    1
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