Math Problem Statement
Calculate the standard deviation and variance of the SAMPLE data shown, to two decimal places
x 29.6 22.7 3.7 22.8 7.3 20 9
Standard deviation:
Variance:
Solution
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Statistics
Measures of Spread
Descriptive Statistics
Formulas
Sample Mean: \bar{x} = \frac{\sum{x_i}}{n}
Sample Variance: s^2 = \frac{\sum (x_i - \bar{x})^2}{n - 1}
Standard Deviation: s = \sqrt{s^2}
Theorems
-
Suitable Grade Level
Grades 9-12
Related Recommendation
How to Calculate Variance and Standard Deviation of a Sample Data Set
How to Calculate Standard Deviation for Data Set: 29.2, 9.1, 15.6, 23.4, 4.5, 17.2, 26.6
Calculate Standard Deviation and Variance of Sample Data (27.6, 1.2, 29.4, 12, 26)
Sample Variance and Standard Deviation Calculation for Dataset 22, 10, 4, 9, 11
How to Calculate the Sample Standard Deviation for 9 Data Points