Answer: 1.396
Explanation: To find the average, or mean, you add the values of the samples and divide by the total number of samples:
Sum of values = 1.25 + 1.49 + 1.50 + 1.39 + 1.35 = 6.98
Number of samples (n) = 5
Mean = 6.98 / 5 = 1.396
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