I am reading Understandable statistics.
In the second chapter, example 2, the author shows the following histogram:
The author then proceed to interpret the histogram as follows:
About 40% of the wait times fall between 7 and 9 minutes while about 80% are between 4 and 9 minutes. Less than 1% are 3 minutes or less or greater than 12.
I think that the statement:
Less than 1% are 3 minutes or less or greater than 12
is false. It should be:
Less than 10% are 3 minutes or less or greater than 12
Is the author correct or am I missing something?
Yes, looking at the graph, $10\%$ seems much more reasonable than $1\%$. It must have been a typo.