1. Kelly and Veronica are two teachers in a math class who attend class independently of...

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1. Kelly and Veronica are two teachers in a math class whoattend class independently of one another. For Friday classes,there is a .70 probability that kelly will come to class, whilethere is a .40 probability that Veronica will come to class. For aFriday class, what is the probability neither Kelly nor Veronicawill be there?
2. The weights of newborn baby twin girls have anapproximately normal distribution with a mean of 8.0 pounds and astandard deviation of 1.5 pounds. A doctor tells the family thatone of the baby twin girl has a weight at the 30th percentile.Which of the following is closest to this baby's weight? (show workplease)
A, 7.2
B 8.5
C 7.7
D 8.9

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4.1 Ratings (624 Votes)

1Let K be the event that Kelly will come to classLet V be the event that Veronica will come to classProbability that Kelly will come to class PK 07Probability that Kelly will not come to class PK 1 PK 1 07 See Answer

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