For the given five values 13, 24, 17, 31, 45, the three years moving averages are.
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 18, 24, 31
$\text{Data: } 13, 24, 17, 31, 45$
$\text{First average} = \frac{13+24+17}{3} = \frac{54}{3} = 18$
$\text{Second average} = \frac{24+17+31}{3} = \frac{72}{3} = 24$
$\text{Third average} = \frac{17+31+45}{3} = \frac{93}{3} = 31$
The three-year moving averages are $18, 24, 31$.