The heights, in cm, of 100 rockhopper penguins are recorded in the following table:
Height, h (cm) | Frequency |
40 ≤ h <45 | 12 |
45 ≤ h <50 | 36 |
50 ≤ h <55 | 42 |
55 ≤ h <60 | 10 |
Write down the number of penguins that are
A rockhopper penguin is chosen at random.
Use your answers to part (a) to help determine the probability that the penguin is
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