Mark can remember only the first 4 digits of his friend's phone ...

[humphriesbr@me.com]

Mark can remember only the first 4 digits of his friend's phone number. He also knows that the number has 7 digits and that the last digit is not a 0.
 
  If Mark were to dial all of the possible numbers and if it takes him 17 seconds to try each one, how long would it take to try every possibility?
  A) 283.4 minutes B) 8.5 minutes C) 255 minutes D) 28.3 minutes

Question 2

Nonparametric statistical tests are used when .
 
  a. the population distribution is normal
  b. the variances of scores are equal in the populations sampled
  c. measurements represent either nominal or ordinal scales
  d. the dependent variable achieves interval measurement

[mcni194]

Answer to Question 1

C

Answer to Question 2

C

[humphriesbr@me.com]

TY

[mcni194]

You're welcome