Question

An education reform lobby is compiling data on the state of education in the United States. In their research they looked at the percent of people who graduate high school in 10 different states. The data are provided below. Use a TI-83, TI-83 Plus, or TI-84 to calculate the sample standard deviation and the sample variance. Round your answers to one decimal place.

Answer 1

Following are the responses to the given question:

Explanation:

Let the missing value:

`77.1 \\\\82.9 \\\\90\\\\91.3\\\\81.9\\\\83.3\\\\84.9\\\\82.5\\\\84.6`

Using the statistical software to calculate the output which can be defined as follows:

Summarizing the statistics:

`Column \ \ \ \ \ \ \ a \ \ \ \ \ \ \ Mean \ \ \ \ \ \ \ Variance \ \ \ \ \ \ \ Std.\ \ der.\\\\ Data \ \ \ \ \ \ \ \ \ \ \ 10 \ \ \ \ \ \ \ 84.11 \ \ \ \ \ \ \ \ \ 16.432111 \ \ \ \ \ \ \ 4.053654`

From the above output:

`Standard \ deviation\ S = 4.1\\\\Variance \ S^2= 16.4`