These are sample practice MCQs created for exam preparation. These are NOT official exam questions.
What is the standard deviation of set S? (1) Set S contains five consecutive integers (2) The median of set S is 10
Question:
What is the standard deviation of set S? (1) Set S contains five consecutive integers (2) The median of set S is 10
What is the standard deviation of set S? (1) Set S contains five consecutive integers (2) The median of set S is 10
Options
Answer: (A) Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient
Explanation:
Statement (1): Five consecutive integers have constant standard deviation regardless of starting value. For integers n, n+1, n+2, n+3, n+4, SD = √2. Sufficient. Statement (2): Median = 10 does not specify the spread. Insufficient.
Explanation:
Statement (1): Five consecutive integers have constant standard deviation regardless of starting value. For integers n, n+1, n+2, n+3, n+4, SD = √2. Sufficient. Statement (2): Median = 10 does not specify the spread. Insufficient.
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