Find interquartile range in statistics

    • [DOC File]Interquartile Range, Standard Deviation, Sets

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      Title: Interquartile Range, Standard Deviation, Sets Author: tech Last modified by: warren Created Date: 1/29/2013 6:46:00 PM Company: wcs Other titles

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    • [DOCX File]IB Questionbank Test - AP Statistics

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      Unit 2 Review – Descriptive Statistics . 1a. [1 mark] Two groups of 40 students were asked how many books they have read in the last two months. The results for . the first group . are shown in the following table. The quartiles for these results are 3 and 5. Write down the value of the median for these results. 1b. [3 marks] Draw a box-and-whisker diagram for these results on the following ...

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    • [DOC File]AP Statistics

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      The interquartile range of the scores is approximately: 6 7 8.1 10.3 12 . C; Some descriptive statistics for a set of test scores are shown in the Minitab printout below. For this test, a certain student has a standardized score of . What score did this student receive on the test? Variable N Mean Median TrMean StDev . Score 50 1045.7 1024.7 1041.9 221.9. Variable SE Mean Minimum Maximum Q1 Q3 ...

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    • [DOC File]Weebly

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      Statistics - Interquartile Range Notes. WHAT. The interquartile . range. of a data set is the difference between the upper and lower quartiles in a data set. Interquartile Range = upper quartile (Q3) – lower quartile (Q1) HOW. 1) Arrange the set of numbers in order from least to greatest. 2) Find the median. 3) Find the lower quartile (Q1): the median of all values below the median. 4) Find ...

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    • [DOC File]STATISTICS FOR THE PART II FRCA - University of Sheffield

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      The interquartile range is the range between the lowest and the highest quarters (i.e. encompassing the middle half of the data). If a dividing point is between two numbers then an average is taken. This method is less susceptible to outliers. Study design and statistical testing (Inferential statistics): STEPS IN PERFORMING A RESEARCH STUDY:

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    • [DOC File]TopicName Test - Jacaranda

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      Find the interquartile range for each subject. In which subject did Emma perform better? Explain your answer. Physics = 71 Chemistry = 72. Physics range = 90 – 50 = 40 Chemistry range = 83 – 30 = 53 . Physics interquartile range = 76 – 66 = 10 Chemistry interquartile range = 74 – 71 = 3. Emma performed slightly better in Chemistry, as indicated by the slightly higher median and greater ...

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    • [DOCX File]Chapter 03 - Descriptive Statistics: Numerical Measures

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      The interquartile range is the difference between the _____. ... In computing descriptive statistics for grouped data, the _____ are used to approximate the data values in each class. a. class lower limits b. class upper limits c. class midpoints d. class ranges. ANSWER: c. POINTS: 1. DIFFICULTY: Easy. REFERENCES: Measures of Location. LEARNING OBJECTIVES: MBST.ASWC.18.03.01 - 3.1. NATIONAL ...

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    • [DOC File]WCMS 6th Grade Math - 2014 - 2015 Math Curriculum

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      Statistics. Interquartile Range Notes. WHAT. The interquartile . range. of a data set is the difference between the upper and lower quartiles in a data set. Interquartile Range = upper quartile (Q3) – lower quartile (Q1) HOW. 1) Arrange the set of numbers in order from least to greatest. 2) Find the median. 3) Find the lower quartile (Q1): the median of all values below the median. 4) Find ...

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    • [DOC File]DESCRIPTIVE STATISTICS

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      Descriptive statistics Revenue in dollars count 9 mean 35,555.56 sample variance 56,027,777.78 sample standard deviation 7,485.17 minimum 25000 maximum 50000 range 25000 population variance 49,802,469.14 population standard deviation 7,057.09 empirical rule mean - 1s 28,070.39 mean + 1s 43,040.73 percent in interval (68.26%) 66.7% mean - 2s 20,585.21 mean + 2s 50,525.90 percent in interval (95 ...

      interquartile range definition

    • [DOC File]AP Statistics Review – Chapter 1 - MR. BUGUSKY

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      The interquartile range of the scores is approximately: (a) 8.1 (b) 12 (c) 6 (d) 10.3 (e) 7. 5. Ms Jackson’s Algebra II class had a standard deviation of 2.4 on their last test test, while her statistics class had a standard deviation of 1.2 on their last test. What can be said about these two classes? (The word homogeneous means alike, consistent, similar) (a) The algebra class’s scores ...

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