The number of lambs born on each of the first 10 days in April are given.
8, 11, 9, 14, 12, 14, 10, 15, 14, 13
Circle the first 4-point moving average.

A moving average is used to smooth out short-term fluctuations in time series data. A 4-point moving average is the average of four consecutive data points. The first four data points are 8, 11, 9, and 14. Step 1: Sum these four points. Sum = 8 + 11 + 9 + 14 = 42. Step 2: Divide the sum by the number of points (which is 4). Average = 42 / 4 = 10.5. So, the first 4-point moving average is 10.5.