Kelli recorded the amount of money she earned, y, for hours worked, x, in the table shown. select the words that correctly complete the sentences.

The answer is 5.05 and 0.82

As standard deviation is the square root of variance, so we take the square root of variance to get the new standard deviation.

Sum of means = 2.45+2.65 = 5.05
Combined mean = 5.05/2 = 2.525
variance = 0.36+0.3025 = 0.6625

combined standard deviation = square root (0.6625) = 0.814 ~ .82