CHAPTER 10

Binomial Distributions, Geometric Distributions, and

Sampling Distributions

1. 
   

        If  you roll    a   pair    of  six-sided   dice,   what    is  the probability that    it  will    take    at  least   3   rolls   to  get a

   
   

   double (both dice showing the same face)?

   
   

(A)

(B)

(C)

(D)

(E)

2. 
   

        Residential properties  for sale    in  one small   city    have    a   mean    price   of  $180,000    and a   standard

   
   

   deviation of $119,000. If a random sample of 10 homes is selected, what is the probability that the
   mean price of the 10 homes is more than $260,000?
   (A) 0.017
   (B) 0.034
   (C) 0.139
   (D) 0.251
   (E) You cannot accurately estimate this probability because the sampling distribution may not be