A sample of 100 wood and 100 graphite tennis rackets are taken ...

[nramada]

A sample of 100 wood and 100 graphite tennis rackets are taken from the warehouse. If 5 wood and 14 graphite are defective and one racket is randomly selected from the sample, find the probability that the racket is wood or defective.
 
  A) 0.57
  B) 0.095
  C) 0.525
  D) There is insufficient information to answer the question.

Question 2

When scores represent ratio level of the measurement, the is the preferred measure of central tendency and the the preferred measure of variability.
 
  a. mean; range
  b. mean; standard deviation
  c. median; mean
  d. median; standard deviation

[cuttiesgirl16]

Answer to Question 1

A

Answer to Question 2

B

[nramada]

Gracias!

[bblaney]

Thanks for the timely response, appreciate it