Question

PLZ HELP NEED ANSWER QUICK
1. What is the mean change in the forecasted high temperatures over the next 7 days? Remember, this can be found by averaging the values in the Difference column for the high temperatures. Show your work and steps. If your answer is not an integer, explain what two integers your answer is between.

High for Tuesday: 87
Wednesday: 87
Thursday: 81
Friday: 86
Saturday: 89
Sunday:83
Monday:89

Answer 1

87+87+81+86+89+83+89= 602. Divided by 7 because that’s how many numbers there were is 86 and that is your mean/average.

Answer 2

The mean change in the forecasted high temperatures is of 4.33 degrees.

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• The mean of a data-set is given by the sum of it's observations, divided by the number of observations.
• There are 7 days, thus, there will be 6 changes.

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• From Tuesday to Wednesday, the change is of |87 - 87| = 0.
• Following this logic, the changes are of 6, 5, 3, 6, 6.
• Thus, the average change will be of:

$A = \frac{0 + 6 + 5 + 3 + 6 + 6}{6} = \frac{26}{6} = 4.33$

The average change in the forecasted high temperatures is of 4.33 degrees.

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