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Statistics question

2019 · 9 Apr · Shift 1 · Q23
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Statistics question

2019 · 9 Apr · Shift 1 · Q23

JEE MainMathematicsStatisticsMCQ+4 / −1
If the standard deviation of the numbers –1, 0, 1, k is 5\sqrt 55​ where k > 0, then k is equal to
  1. A
    2 6\sqrt 66​
  2. B
    6\sqrt 66​
  3. C
    2562\sqrt {{{5} \over 6}}265​​
  4. D
    21032\sqrt {{{10} \over 3}}2310​​
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