Statistics

A simple random sample of cars in a city was categorized according to fuel type and place of manufacture.

domestic foreign
gasoline 146 191
diesel 18 26
gasoline/ 51 79
electricity hybrid

1. If the two variables were independent, the expected number of foreign gas/electric hybrids would be estimated to be _______.

2. Degrees of freedom =
a) 1
b) 2
c) 4

  1. 0
  2. 0
  3. 4
asked by Brandon
  1. 1. 79/grand total = ?

    2. df for what?

    1. 0
    2. 0
    posted by PsyDAG

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