Question 1119219
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A study found that 45% of the embryo transfers performed in assisted reproductive technology (ART) procedures resulted in pregnancies. 
Twenty-four percent of the ART pregnancies resulted in multiple births.



(a) &nbsp;&nbsp;<U>Find the probability that a randomly selected embryo transfer resulted in a pregnancy and produced a multiple birth</U>.


<pre>
        P(A & B) = P(A)*P(B) = 0.45*0.24 = 0.108 = 10.8%.
</pre>


(b) &nbsp;&nbsp;<U>Find the probability that a randomly selected embryo transfer that resulted in a pregnancy did not produce a multiple birth</U>. 


<pre>
        This probability is  1 - P(B) = 1 - 0.24 = 0.76 = 76%.
</pre>