The mean of first ten multiples of 2 is
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The first ten multiples of 2 are:
2, 4, 6, 8, 10, 12, 14, 16, 18, 20.
To calculate the mean, use the formula:
Mean = (Sum of all observations) / (Number of observations).
Calculate the sum of the first ten multiples of 2.
Sum = 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 + 20.
This is an arithmetic progression (AP) with:
– First term (a) = 2,
– Last term (l) = 20,
– Number of terms (n) = 10.
The sum of an AP is given by:
Sum = n/2 × (a + l).
Substitute the values:
Sum = 10/2 × (2 + 20),
Sum = 5 × 22,
Sum = 110.
Calculate the mean.
Mean = Sum / Number of observations,
Mean = 110 / 10,
Mean = 11.
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