Quiz 4-1.docx - Question 1 0.5 out of 0.5 points If a distribution has a mean of 50 and a standard deviation of 25 how many standard deviations is 0

# Quiz 4-1.docx - Question 1 0.5 out of 0.5 points If a...

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Question 1 0.5 out of 0.5 points If a distribution has a mean of 50 and a standard deviation of 25, how many standard deviations is 0 from the mean? Selected Answer: A. -2 Question 2 0.5 out of 0.5 points What type of standard score has M = 0 and SD = 1? Selected Answer: B. z score Question 3 0.5 out of 0.5 points In a distribution with a mean of 100 and a standard deviation of 15, what is the probability that a score will be 115 or higher? Selected Answer: B. 16% Question 4 0.5 out of 0.5 points A score that is 2 1/2 standard deviations below the mean would have a z-score of: Selected Answer: D. -2.5 Question 5 0.5 out of 0.5 points Standard scores are raw scores which have been adjusted for the particular mean and standard deviation of the distribution from which they are derived. Selected Answer: True Question 6 0 out of 0.5 points What is the area within .7 standard deviations of the mean? Use Appendix A ( z Distribution) to answer this question. Selected Answer: 48% Response Feedback: This is twice the area between the mean and z = +0.7 from the area under the normal curve. Choice B is correct. Choices A, C, and D represent errors in logic or calculation. Question 7 0.5 out of 0.5 points Sarah and her brother Shaun go to the same high school. Sarah is a senior and Shaun is a   #### You've reached the end of your free preview.

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