What is the mean? –9, –6, –7, –2, 7, –9, –3, –4, –9, –8 _____

List data set & identify numbers: List the data set and identify the numbers to be used in the calculation. Data set: –9, –6, –7, –2, 7, –9, –3, –4, –9, –8 We will use all these numbers to calculate the mean.Find sum of all numbers: Add all the numbers together to find the sum. Sum = (–9) + (–6) + (–7) + (–2) + 7 + (–9) + (–3) + (–4) + (–9) + (–8) Sum = –9 – 6 – 7 – 2 + 7 – 9 – 3 – 4 – 9 – 8 Sum = –50Count number of values: Count the number of values in the data set. There are 10 numbers in the data set.Calculate mean: Divide the sum by the number of values to find the mean. Mean = Sum / Number of values Mean = (–50) / 10 Mean = –5

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What is the mean? $\newline$ $-9, -6, -7, -2, 7, -9, -3, -4, -9, -8$ $\newline$ _____

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Algebra 1

Mean, median, mode, and range

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Q. What is the mean?

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-9, -6, -7, -2, 7, -9, -3, -4, -9, -8

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_____

List data set & identify numbers: List the data set and identify the numbers to be used in the calculation. $\newline$ Data set: $-9, -6, -7, -2, 7, -9, -3, -4, -9, -8$ $\newline$ We will use all these numbers to calculate the mean.
Find sum of all numbers: Add all the numbers together to find the sum. $\newline$ Sum = $(-9) + (-6) + (-7) + (-2) + 7 + (-9) + (-3) + (-4) + (-9) + (-8)$ $\newline$ Sum = $-9 - 6 - 7 - 2 + 7 - 9 - 3 - 4 - 9 - 8$ $\newline$ Sum = $-50$
Count number of values: Count the number of values in the data set. $\newline$ There are $10$ numbers in the data set.
Calculate mean: Divide the sum by the number of values to find the mean. $\newline$ Mean = $\frac{\text{Sum}}{\text{Number of values}}$ $\newline$ Mean = $\frac{(-50)}{10}$ $\newline$ Mean = $-5$