# Question

The following data represent the birth weights (in grams) of babies born in 2007, along with the period of gestation.

(a) What is the probability that a randomly selected baby born in 2007 was postterm?

(b) What is the probability that a randomly selected baby born in 2007 weighed 3000 to 3999 grams?

(c) What is the probability that a randomly selected baby born in 2007 weighed 3000 to 3999 grams and was postterm?

(d) What is the probability that a randomly selected baby born in 2007 weighed 3000 to 3999 grams or was postterm?

(e) What is the probability that a randomly selected baby born in 2007 weighed less than 1000 grams and was postterm? Is this event impossible?

(f ) What is the probability that a randomly selected baby born in 2007 weighed 3000 to 3999 grams, given the baby was postterm?

(g) Are the events “postterm baby” and “weighs 3000 to 3999 grams” independent? Why?

(a) What is the probability that a randomly selected baby born in 2007 was postterm?

(b) What is the probability that a randomly selected baby born in 2007 weighed 3000 to 3999 grams?

(c) What is the probability that a randomly selected baby born in 2007 weighed 3000 to 3999 grams and was postterm?

(d) What is the probability that a randomly selected baby born in 2007 weighed 3000 to 3999 grams or was postterm?

(e) What is the probability that a randomly selected baby born in 2007 weighed less than 1000 grams and was postterm? Is this event impossible?

(f ) What is the probability that a randomly selected baby born in 2007 weighed 3000 to 3999 grams, given the baby was postterm?

(g) Are the events “postterm baby” and “weighs 3000 to 3999 grams” independent? Why?

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