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Published byGizella Halászné Modified over 5 years ago
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pencil, red pen, highlighter, notebook, graphing calculator
5/2/13 Have out: On a test, the average score was 78 and the standard deviation was 6. Label the normal curve with the scores (and include z–scores). Answer the following: Bellwork: a) What percent of scores are less than 90? b) What percent of scores are between 66 and 84? c) What percent of scores are higher than 60? d) Tomiko scored a 70 on the test. What is her z–score? Is she an outlier? e) Yasashiku has a z–score of What is his raw score? Round your answer to the nearest whole number. total:
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a) What percent of scores are less than 90?
50% + 47.5% = 97.5% +2 +1 50% 47.5% 60 66 72 78 84 90 96 –3 –2 –1 1 2 3 z–score +1 labeled scores +1 labeled z–scores
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b) What percent of scores are between 66 and 84?
47.5% + 34% = 81.5% +2 +1 47.5% 34% 60 66 72 78 84 90 96 –3 –2 –1 1 2 3 z–score
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c) What percent of scores are higher than 60?
49.855% + 50% = 99.85% +2 +1 50% 49.85% 60 66 72 78 84 90 96 –3 –2 –1 1 2 3 z–score
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d) Tomiko scored a 70 on the test. What is her z–score
d) Tomiko scored a 70 on the test. What is her z–score? Is she an outlier? +1 +1 No, she is not an outlier. +1 e) Yasashiku has a z–score of What is his raw score? Round your answer to the nearest whole number. +1 total: +1 60 66 72 78 84 90 96 –3 –2 –1 1 2 3 z–score
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It’s time for the study team test!
Move into your group and work on the test. Due tomorrow!
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It’s time to grade the QUIZ!!!
Clear your desk except for a red pen.
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