Presentation_2.43

2.6.5 Continuous distributions:

2.43 Cat weights. The histogram shown below represents the weights (in kg) of 47 female and 97 male cats.68

Total cats:

97 + 47

## [1] 144

1. What fraction of these cats weigh less than 2.5 kg?

Answer:

(30 + 32)/144

## [1] 0.4305556

2. What fraction of these cats weigh between 2.5 and 2.75 kg?

Answer:

20/144

## [1] 0.1388889

3. What fraction of these cats weigh between 2.75 and 3.5 kg?

Answer:

(27 + 12 + 15)/144

## [1] 0.375