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[DOC File]2002 AP Statistics Multiple Choice Exam.doc
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A certain adult male gray whale weighs 24,000 kilograms. This whale would have the same standardized weight (z-score) as an adult male humpback whale whose weight, in kilograms, is equal to which of the following? (A) 21,000 (B) 24,000 (C) 30,000 (D) 36,000 (E) 39,000. 23.
80 percent z score

[DOC File]JustAnswer
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Feb 27, 2010 · Question 20 5 points Save 48% of the area under the standard normal curve is above the score. Use a table to find a z-score that fits the given conditions. Interpolate if necessary. 0.05 Question 21 5 points Save Evaluate the expression . 45
z score 99 percent

[DOC File]Statistics Review Chapters 1-8
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What z-score does a pregnancy of 257 days have? What percent of humans have a pregnancy lasting less than 257 days? What percent of humans have a pregnancy lasting longer than 280 days? What percent of humans have a pregnancy lasting between 260 and 270 days? Would you say pregnancy length is a continuous or discrete variable? Justify.
z score for 90

[DOC File]Sample Test Questions -- Test 1 - University of Florida
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C. The entry corresponding to z= -1.34 is 0.0901 (this is the probability less), so, this shows most of students’ scores (90%) are higher than you. C Z= (48-60)/12=-1 . B. Look the table A, the entry corresponding to the z-score is 0.1587. A. Unstandardize the z-score. X= 60+12*5.2=122.4. 122.4 is much larger than the mean( =60). B. Range ...
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[DOC File]Statistics Review Chapters 1-8
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10. Find the 5-number summary of the litter sizes. min = 1 Q1 = 5 median = 6 Q3 = 7 max = 11. What is the interquartile range? 2. Make a boxplot of the litter sizes. Find the standard deviation of the litter sizes. Is standard deviation resistant to outliers? sx = 1.8127 No, standard deviation is not resistant to outliers. ...
z score for 90 percent

[DOCX File]Rivier University - My School Psychology
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This type of standard score ranges from about 40 to about 160 with an average score of 100. The middle half of students' standard scores falls between 90 and 110. Please see pages i and ii. Scaled scores range from 1 to 19 or 20 with an average score of 10. The middle half of students' scaled scores falls between 8 and 12. Please see pages i ...
80 percent z score

[DOC File]Test 9C - Mrs. Davis' AP Stat Page - Home
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SOLUTION #1: FIND THE Z SCORE THAT CORRESPONDS TO .01 ON THE Z TABLE = 2.33. P hat = .229. OR. SOLUTION #2: USE THE CALCULATOR( INVNORM(.01, 20, .0126) = .229. 10. The amount that households pay service providers for access to the Internet varies quite a bit, but . the mean monthly fee is $28 and the standard deviation is $10.
z score 99 percent

[DOC File]STATISTICS: Sect
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20. The standardized score is a z-score. Mark this value on the graph at the right. Since we want to know if the claim is too high, we think that the true proportion is actually less than 0.72. So we need to shade the area to the left of our z-score. Then find the area using Table A. The area we find is the P-value. It’s value is ...
z score for 90

[DOC File]1 - Webs
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Ex21. The salary of a person was reduced by 10% .By what percent should his reduced salary be raised so as to bring it at par with his original salary ? Sol: Let the original salary be Rs.100 . New salary = Rs.90. Increase on 90=10 , Increase on 100=((10/90)*100)% = (100/9)%
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Z score of 90 percent 10 digits