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Metallurgical Engineering · Q10

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Engineering and GATE · Metallurgical Engineering · question 10

Q10

For random distribution of particle size, standard deviation is defined in such a way that:

A.
Any number od data may lie within -1σ to +1σ
Answer
B.
At least 75% data lie within -1σ to +1σ
C.
At least 88.8% data lie within -2σ to + 2σ
D.
At least 75% data lie within -3σ to + 3σ

Answer: Option A

Solution

Answer: Option A
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