SOLUTION: What the calculation range,variance, and standard deviation of 7,4,2,3,4,5,8,1,9,4

Question 1184953: What the calculation range,variance, and standard deviation of 7,4,2,3,4,5,8,1,9,4
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
What the calculation range,variance, and standard deviation of ,,,,,,,,,

Range:
The range is found by subtracting the smallest data value from the largest data value. Here, the smallest data value is and the largest is . Therefore, the range is:

Variance:
1. The steps that follow are also needed for finding the standard deviation. Start by writing the computational formula for the variance of a sample:

Create a table of columns and rows. There will be a header row and a row for each data value. The header row should be labeled with and .
Enter the data values in the column, with each data value in its own row. In the second column, put the square of each of the data values, .
.
....|....
....|....
....|....
....|....
....|....
....|....
....|....
....|....
....|....
....|....
....|....
3. Find the sum of all the values in the first column,

Standard Deviation

Answer:
Range:
Variance:
Standard deviation:

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