An automobile manufacturer has determined that 30 of all gas ...

[B]

An automobile manufacturer has determined that 30 of all gas tanks that were
  installed on its 2002 compact model are defective. If 13 of these cars are independently
  sampled, what is the probability that more than half need new gas tanks?
 
  What will be an ideal response?

Question 2

Chebyshev's rule applies to qualitative data sets, while the empirical rule applies to quantitative
  data sets.
 
  A) True B) False

[strudel15]

Answer to Question 1

Let x = the number of the 13 cars with defective gas tanks. Then X is a binomial random variable with n = 13 and
p = .30.
P(more than half) = P(x > 6.5 ) = P(x

Answer to Question 2

B

[B]

Excellent

[jomama]

Thanks for the timely response, appreciate it