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Question: Birth rates in the 50 states, collected


Birth rates in the 50 states, collected in a recent year by the Center for Health Statistics, are grouped into the following frequency table.



Birth rates in the 50 states, collected in a recent year -1

Endpoint convention: Lower endpoint is included, upper endpoint is not. If one state is selected at random, what is the probability that the birth rate there is:
(a) Under 12.37
(b) Under 14.3 but not under 10.3?
(c) 13.3 or over?

2.99

See Answer