ex04.88 {Devore6} | R Documentation

## data from exercise 4.88

### Description

The `ex04.88` data frame has 30 rows and 1 columns of precipitation during March in Minneapolis-St. Paul.

### Format

This data frame contains the following columns:

preciptn
  a numeric vector of precipitation (in) during March in Minneapolis-St. Paul.

### Source

Devore, J. L. (2003) Probability and Statistics for Engineering and the Sciences (6th ed), Duxbury

### Examples

    data(ex04.88)
    attach(ex04.88)
    ## Normal probability plot
    qqnorm(preciptn, ylab = "Precipitation (in)",
       main = "Precipitation during March in Minneapolis-St. Paul")
    qqline(preciptn)
    ## Normal probability plot on square root scale
    qqnorm(sqrt(preciptn),
       ylab = expression(sqrt("Precipitation (in)")),
       main =
         "Precipitation during March in Minneapolis-St. Paul")
    qqline(sqrt(preciptn))
    detach()

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