Find the average of the numbers appearing on all 6 faces of a cubical die numbered 1 to 6.
Answer & explanation
Correct answer: option 3
Numbers appear on all faces of cubical dies = 1 , 2 , 3 , 4 , 5 , 6,
First number = 1 , Last number = 6
Average = \(\frac{First\; term \;+\; Last \;term}{2}\)
= \(\frac{1 \;+\; 6}{2}\)
= \(\frac{7}{2}\) = 3.5