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Stats-Normal Curve and Standard Deviation Flashcards | StudBud
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Stats-Normal Curve and Standard Deviation
Stats-Normal Curve and Standard Deviation
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Answers
1
What is the standard deviation for the SAT scores?
2500
500
1500
250
2
What percent of students scored above 1750?
13.5
34
16
2.35
3
What percent of students scored between 1000 and 1500?
13.5
47.5
50
34
4
What is the mean for the SAT Scores
500
1500
250
2500
5
What is the Empirical Rule for Statistics?
Everything must be equal
68 - 95 - 99.7
50-50-90
30-60-90
6
68% of the scores on a standardized test ranged from 62- 87. What would be the standard deviation?
6.25
74.5
25
12.5
7
The mean of a normally distributed set of data is 56, and the std dev is 5. In which interval do 95% of all cases lie?
(46,66)
(56,71)
(51,61)
(46,56)
