hoW or oe 6C The Normal Distribution 393 tics exam, the standard score was 75. 21-28: Psychology Exam. The scores on a psychology exam were normally distributed with a mean of 67 and a standard deviation of 8. final on a curve, and she gave a o had a standard score of 2 or more. 21. About what percentage of scores were above 59? ile for height, so he is of median height. 22. About what percentage of scores were below 83? 23. A failing grade on the exam was anything 2 or more standard deviations below the mean. What was the cutoff for a failing score? Approximately what percentage of the students failed? EPTS der the following sets of three distri- n to the same scale. Identify the two Of the two normal distributions, which 24 If 500 students took the exam, approximately how many stu- dents scored below 75? brabnsse sdi 25. What is the standard score for an exam score of 67? 26. What is the standard score for an exam score of 63? 27. What is the standard score for an exam score of 55? 1egonssineno 28. What is the standard score for an exam score of 85? IM8 29-30: Standard Scores and Percentiles. Use Table 6.3 to find the

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have a statistics question. Question number 24 which circled on attached image.  

hoW or oe 6C The Normal Distribution
393
tics exam, the standard score was 75. 21-28: Psychology Exam. The scores on a psychology exam were
normally distributed with a mean of 67 and a standard deviation of 8.
final on a curve, and she gave a
o had a standard score of 2 or more.
21. About what percentage of scores were above 59?
ile for height, so he is of median height. 22. About what percentage of scores were below 83?
23. A failing grade on the exam was anything 2 or more standard
deviations below the mean. What was the cutoff for a failing
score? Approximately what percentage of the students failed?
EPTS
der the following sets of three distri-
n to the same scale. Identify the two
Of the two normal distributions, which
24 If 500 students took the exam, approximately how many stu-
dents scored below 75?
brabnsse sdi
25. What is the standard score for an exam score of 67?
26. What is the standard score for an exam score of 63?
27. What is the standard score for an exam score of 55?
1egonssineno
28. What is the standard score for an exam score of 85?
IM8
29-30: Standard Scores and Percentiles. Use Table 6.3 to find the
Transcribed Image Text:hoW or oe 6C The Normal Distribution 393 tics exam, the standard score was 75. 21-28: Psychology Exam. The scores on a psychology exam were normally distributed with a mean of 67 and a standard deviation of 8. final on a curve, and she gave a o had a standard score of 2 or more. 21. About what percentage of scores were above 59? ile for height, so he is of median height. 22. About what percentage of scores were below 83? 23. A failing grade on the exam was anything 2 or more standard deviations below the mean. What was the cutoff for a failing score? Approximately what percentage of the students failed? EPTS der the following sets of three distri- n to the same scale. Identify the two Of the two normal distributions, which 24 If 500 students took the exam, approximately how many stu- dents scored below 75? brabnsse sdi 25. What is the standard score for an exam score of 67? 26. What is the standard score for an exam score of 63? 27. What is the standard score for an exam score of 55? 1egonssineno 28. What is the standard score for an exam score of 85? IM8 29-30: Standard Scores and Percentiles. Use Table 6.3 to find the
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