Reference no: EM13324870 
                                                                               
                                       
1.	 Suppose 7% of construction workers have been exposed to asbestos.  We  randomly sample 4 construction workers (assume they are independent).   Use the Binomial probability function, with n = 4 and p = .07, to find  the probability that:
a.	exactly two of the workers have been exposed to asbestos
b.	at least one of the workers has been exposed to asbestos (use the complement law)
2.	 Suppose 25% of rats have recessive traits.  We take a random sample of  16 rats.  Use the Binomial table to answer the following.
a.	Find the probability that exactly 5 rats have recessive traits.
b.	Find the probability that no more than 9 rats have recessive traits.
c.	Find the probability that at least 5 rats have recessive traits.
d.	Find the probability that between 4 and 10 rats, inclusive, have recessive traits.
e.	 Suppose we observe that 2 of the 16 rats have recessive traits.  Would  you consider this an unusually low number?  Calculate a probability to  justify your answer.