Referring to Exercise 2.20, construct a density histogram using the intervals (6.5, 6.7 ], (6. 7, 6.9], (6.9, 7.1 ], ( 7.1, 7.5], and (7.5, 7.9 ].

Using R: With the observations in x

hist (x,breaks = c(6.5,6. 7,6.9, 7.1, 7.5, 7 .9), prob = T)

Data from in Exercise 2.20

In a recent year, 35 sites around the world experienced earthquakes of magnitude greater than 6.5.

Construct a histogram using equal-length intervals starting with (6.5, 6.8 ], where the right-hand endpoint is included but not the left-hand endpoint.

Transcribed Image Text:

6.6 6.6 6.6 6.6 6.7 6.7 6.7 6.8 6.9 6.9 6.9 6.9 7.2 7.2 7.0 7.0 7.1 7.1 7.1 7.7 7.8 7.8 7.8 7.9 7.9 6.6 6.6 6.7 6.7 6.8 6.8 7.0 7.0 7.5 7.6