You can order a new model of an electronic notebook in one of ...

[bio_gurl]

You can order a new model of an electronic notebook in one of five colors. The notebook also comes loaded with one of four different games.
 
  How many different combinations of colors and games are possible? If you were to order three different notebooks without stating preference on color or games, what is the probability that they are identical? Assume that the color and game on one notebook is independent of any others.

Question 2

Which of the following statements is the best explanation of the R2?
 
  A) 3.5 of the accident damage can be explained by the age of the driver.
  B) 3.5 of the variation in accident damage can be explained by variation in the age of the driver.
  C) 3.5 of the coefficients, t-stat, and p-value can be explained by the age of the driver.
  D) 3.5 of the total error can be explained by the SSE.

[frogdreck123456]

Answer to Question 1

There would be (5 )(4 ) = 20 possible models. If you choose three different notebooks, the probability the first and the second match is 1/20. The probability the third also matches is 1/20  1/20 = 1/400

Answer to Question 2

B

[bio_gurl]

Gracias!

[gcook]

Excellent