Answer:
To determine the standard deviation of a set of data, you need to follow these steps:
Calculate the mean (average) of the data. In this case, the mean weight of the 10 adults is (72+78+76+86+77+77+80+77+82+80) / 10 = 78.4 kg
Find the difference between each data point and the mean.
3.Square each difference.
Sum all the squared differences.
Divide the sum of the squared differences by the number of data points (n) minus 1.
Take the square root of the result in step 5 to get the standard deviation.
So the standard deviation for the weights of 10 adults is 78.4 kg,