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Author Question: A student scores 74 on a geography test and 249 on a mathematics test. The geography test has a mean ... (Read 88 times)

plus1

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on: Jul 25, 2018
A student scores 74 on a geography test and 249 on a mathematics test. The geography test has a mean of 80 and a standard deviation of 5. The mathematics test has a mean of 300 and a standard deviation of 34.
 
  If the data for both tests are normally distributed, on which test did the student score better relative to the other students in each class?
  A) The student scored better on the mathematics test.
  B) The student scored better on the geography test.
  C) The student scored the same on both tests.

Question 2

Jim buys his school supplies in bulk. On one particular shopping trip he bought 5 red pens at 1.29 each, 3 blue pens at 1.49 each, 6 green pens at 1.79 each and 9 black pens at 0.99 each. What was the average cost of a pen?
 
  A) 1.39 B) 1.33 C) 1.29 D) 0.99


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Mholman93

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Reply #1 on: Jul 25, 2018
Answer to Question 1

B

Answer to Question 2

B


plus1

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Reply 2 on: Jul 25, 2018
Great answer, keep it coming :)

diana chang

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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