Data for Exercise 1.68 and 1.82

Concept

Format

A data frame/tibble with 28 observations on one variable

self

Tennessee self concept scores

References

Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.

Examples


summary(Concept$self)
#>    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
#>    3.00   20.00   25.00   24.64   29.25   45.00 
sd(Concept$self)
#> [1] 9.707631
diff(range(Concept$self))
#> [1] 42
IQR(Concept$self)
#> [1] 9.25
summary(Concept$self/10)
#>    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
#>   0.300   2.000   2.500   2.464   2.925   4.500 
IQR(Concept$self/10)
#> [1] 0.925
sd(Concept$self/10)
#> [1] 0.9707631
diff(range(Concept$self/10))
#> [1] 4.2