Standard Deviation Mean

What is the third step in finding the standard deviation?

• Find the Mean

• Subtract the mean from each number in the data set

• square each number that you've subtracted the mean from or the deviations

• add each deviation together

What is the second step in finding the standard deviation?

• Finding the Mean

• Listing the Numbers from least to greatest

• Subtract the mean from each number in you data set

• Square Each deviation

What is the first step in finding the standard deviation?

What is the fourth step in finding the standard deviation?

• Find the mean

• Square Each deviation

• Divide the sum by the number of scores

• Add the squared devivations

A study of all the students at a small college showed a mean age of 20.7 and a standard deviation of 2.5 years.

Label both numbers with their appropriate symbol.

​ (a)   = 20.7 and ​ (b)   = 2.5

• 𝜇

• 𝜎

Solve for the standard deviation (round to the nearest hundredths)

• 7.10

• 7.11
  

• 7.2

• 7.1

Find the standard deviation of the data.

• 7.94

• 7.93

• 7.92

• 7.91

With the scores on the table given, find its STANDARD DEVIATION (SD)

• SD= 2

• SD= 2.5

• SD= 2.89

• SD= 2.99

A study of all the students at a small college showed a mean age of 20.7 and a standard deviation of 2.5 years.

Label both numbers with their appropriate symbol.

​ (a)   = 20.7 and ​ (b)   = 2.5

• 𝜇

• 𝜎

Data were represented in a table, solve for its standard deviation (SD).

• M.D = 1.87

• M.D = 3

• M.D = 0.87

• M.D = 2.5