Question

Which of the following is not changed for the observations $31,48,50,60,25,8,3x,26,32?$ (where $x$ lies between $10$ and $15$)

• A. A.M.
• B. Range
• C. Median
• D. Q.D.

Answer 1

Answer: (B)

Range

Range of a set of data is the difference between highest and lowest values in the set.

Observations: For $x\in (10,15),31,48,50,60,25,8,3x,26,32$

Order: $8,25,26,30,31,32,33,39,42,45,48,50,60$

Range$=$highest$-$lowest$=60-8=52$

$\therefore$ Range doesn't changes.