Math {BSDA}

Standardized math test scores for 30 students

Description

Data for Exercise 1.69

Usage

Math

Format

A data frame/tibble with 30 observations on one variable

score

scores on a standardized test for 30 tenth graders

References

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

Examples

stem(Math$score)
hist(Math$score, main = "Math Scores", xlab = "score", freq = FALSE)
lines(density(Math$score), col = "red")
CharlieZ <- (62 - mean(Math$score))/sd(Math$score)
CharlieZ
scale(Math$score)[which(Math$score == 62)]