Suppose That in an Assortment of 6 Calculators, There Are

question 13

Multiple Choice

Suppose that in an assortment of 6 calculators, there are 3 with defective switches. Draw with and without replacement. If two machines are selected at random, what is the probability that both have defective switches? ​

• A) with : , without :
• B) both :
• C) with : , without :
• D) both :
• E) none of these