🗊 Презентация Descriptive statistics. Frequency distributions and their graphs. (Section 2.1)

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Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №1 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №2 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №3 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №4 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №5 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №6 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №7 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №8 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №9 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №10 Descriptive statistics. Frequency distributions and their graphs. 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Frequency distributions and their graphs. (Section 2.1), слайд №43 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №44 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №45 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №46 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №47 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №48 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №49 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №50 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №51 Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №52 Descriptive statistics. Frequency distributions and their graphs. 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Слайды и текст этой презентации


Слайд 1


Descriptive Statistics
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Descriptive Statistics

Слайд 2


Section 2.1
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Section 2.1

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Frequency Distributions 102 124 108 86 103 82 71 104 112 118 87 95 103 116 85 122 87 100 105 97 107 67 78 125 109 99 105 99 101 92
Описание слайда:
Frequency Distributions 102 124 108 86 103 82 71 104 112 118 87 95 103 116 85 122 87 100 105 97 107 67 78 125 109 99 105 99 101 92

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Frequency Distributions
Описание слайда:
Frequency Distributions

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Frequency Distributions
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Frequency Distributions

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Construct a Frequency Distribution
Описание слайда:
Construct a Frequency Distribution

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Other Information
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Other Information

Слайд 8


Frequency Histogram
Описание слайда:
Frequency Histogram

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Frequency Histogram
Описание слайда:
Frequency Histogram

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Relative Frequency Histogram
Описание слайда:
Relative Frequency Histogram

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Relative Frequency Histogram
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Relative Frequency Histogram

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Frequency Polygon
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Frequency Polygon

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Frequency Polygon
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Frequency Polygon

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Ogive
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Ogive

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Ogive
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Ogive

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Section 2.2
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Section 2.2

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Stem-and-Leaf Plot 102 124 108 86 103 82 71 104 112 118 87 95 103 116 85 122 87 100 105 97 107 67 78 125 109 99 105 99 101 92
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Stem-and-Leaf Plot 102 124 108 86 103 82 71 104 112 118 87 95 103 116 85 122 87 100 105 97 107 67 78 125 109 99 105 99 101 92

Слайд 18


Stem-and-Leaf Plot 6 | 7 | 8 | 9 | 10 | 11 | 12 |
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Stem-and-Leaf Plot 6 | 7 | 8 | 9 | 10 | 11 | 12 |

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Stem-and-Leaf Plot 6 | 7 7 | 1 8 8 | 2 5 6 7 7 9 | 2 5 7 9 9 10 | 0 1 2 3 3 4 5 5 7 8 9 11 | 2 6 8 12 | 2 4 5
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Stem-and-Leaf Plot 6 | 7 7 | 1 8 8 | 2 5 6 7 7 9 | 2 5 7 9 9 10 | 0 1 2 3 3 4 5 5 7 8 9 11 | 2 6 8 12 | 2 4 5

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Stem-and-Leaf with two lines per stem 6 | 7 7 | 1 7 | 8 8 | 2 8 | 5 6 7 7 9 | 2 9 | 5 7 9 9 10 | 0 1 2 3 3 4 10 | 5 5 7 8 9 11 | 2 11 | 6 8 12 | 2 4...
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Stem-and-Leaf with two lines per stem 6 | 7 7 | 1 7 | 8 8 | 2 8 | 5 6 7 7 9 | 2 9 | 5 7 9 9 10 | 0 1 2 3 3 4 10 | 5 5 7 8 9 11 | 2 11 | 6 8 12 | 2 4 12 | 5

Слайд 21


Dot Plot
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Dot Plot

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Pie Chart / Circle Graph Used to describe parts of a whole Central Angle for each segment
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Pie Chart / Circle Graph Used to describe parts of a whole Central Angle for each segment

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Pie Chart
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Pie Chart

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Pareto Chart
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Pareto Chart

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Scatter Plot
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Scatter Plot

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Time Series Chart / Line Graph
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Time Series Chart / Line Graph

Слайд 27


Section 2.3
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Section 2.3

Слайд 28


Measures of Central Tendency Mean: The sum of all data values divided by the number of values For a population: For a sample:
Описание слайда:
Measures of Central Tendency Mean: The sum of all data values divided by the number of values For a population: For a sample:

Слайд 29


An instructor recorded the average number of absences for his students in one semester. For a random sample the data are: An instructor recorded the...
Описание слайда:
An instructor recorded the average number of absences for his students in one semester. For a random sample the data are: An instructor recorded the average number of absences for his students in one semester. For a random sample the data are:

Слайд 30


An instructor recorded the average number of absences for his students in one semester. For a random sample the data are: An instructor recorded the...
Описание слайда:
An instructor recorded the average number of absences for his students in one semester. For a random sample the data are: An instructor recorded the average number of absences for his students in one semester. For a random sample the data are:

Слайд 31


Suppose the student with 40 absences is dropped from the course. Calculate the mean, median and mode of the remaining values. Compare the effect of...
Описание слайда:
Suppose the student with 40 absences is dropped from the course. Calculate the mean, median and mode of the remaining values. Compare the effect of the change to each type of average. Suppose the student with 40 absences is dropped from the course. Calculate the mean, median and mode of the remaining values. Compare the effect of the change to each type of average.

Слайд 32


Suppose the student with 40 absences is dropped from the course. Calculate the mean, median and mode of the remaining values. Compare the effect of...
Описание слайда:
Suppose the student with 40 absences is dropped from the course. Calculate the mean, median and mode of the remaining values. Compare the effect of the change to each type of average. Suppose the student with 40 absences is dropped from the course. Calculate the mean, median and mode of the remaining values. Compare the effect of the change to each type of average.

Слайд 33


Shapes of Distributions
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Shapes of Distributions

Слайд 34


Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №34
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Слайд 35


Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №35
Описание слайда:

Слайд 36


Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №36
Описание слайда:

Слайд 37


Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №37
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Слайд 38


Section 2.4
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Section 2.4

Слайд 39


Two Data Sets
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Two Data Sets

Слайд 40


Two Data Sets
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Two Data Sets

Слайд 41


Measures of Variation
Описание слайда:
Measures of Variation

Слайд 42


Measures of Variation
Описание слайда:
Measures of Variation

Слайд 43


Descriptive statistics. Frequency distributions and their graphs. (Section 2.1), слайд №43
Описание слайда:

Слайд 44


Population Variance
Описание слайда:
Population Variance

Слайд 45


Population Standard Deviation
Описание слайда:
Population Standard Deviation

Слайд 46


Sample Variance and Standard Deviation
Описание слайда:
Sample Variance and Standard Deviation

Слайд 47


Interpreting Standard Deviation
Описание слайда:
Interpreting Standard Deviation

Слайд 48


Summary
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Summary

Слайд 49


Empirical Rule (68-95-99.7%) Data with symmetric bell-shaped distribution have the following characteristics.
Описание слайда:
Empirical Rule (68-95-99.7%) Data with symmetric bell-shaped distribution have the following characteristics.

Слайд 50


Using the Empirical Rule The mean value of homes on a certain street is $125,000 with a standard deviation of $5,000. The data set has a bell shaped...
Описание слайда:
Using the Empirical Rule The mean value of homes on a certain street is $125,000 with a standard deviation of $5,000. The data set has a bell shaped distribution. Estimate the percent of homes between $120,000 and $135,000.

Слайд 51


Using the Empirical Rule The mean value of homes on a certain street is $125,000 with a standard deviation of $5,000. The data set has a bell shaped...
Описание слайда:
Using the Empirical Rule The mean value of homes on a certain street is $125,000 with a standard deviation of $5,000. The data set has a bell shaped distribution. Estimate the percent of homes between $120,000 and $135,000.

Слайд 52


Chebychev’s Theorem For any distribution regardless of shape the portion of data lying within k standard deviations (k > 1) of the mean is at least 1...
Описание слайда:
Chebychev’s Theorem For any distribution regardless of shape the portion of data lying within k standard deviations (k > 1) of the mean is at least 1 – 1/k2.

Слайд 53


Chebychev’s Theorem
Описание слайда:
Chebychev’s Theorem

Слайд 54


Chebychev’s Theorem
Описание слайда:
Chebychev’s Theorem

Слайд 55


Standard Deviation of Grouped Data
Описание слайда:
Standard Deviation of Grouped Data

Слайд 56


Estimates with Classes
Описание слайда:
Estimates with Classes

Слайд 57


Section 2.5
Описание слайда:
Section 2.5

Слайд 58


Quartiles
Описание слайда:
Quartiles

Слайд 59


Quartiles
Описание слайда:
Quartiles

Слайд 60


Finding Quartiles
Описание слайда:
Finding Quartiles

Слайд 61


Interquartile Range (IQR)
Описание слайда:
Interquartile Range (IQR)

Слайд 62


Box and Whisker Plot
Описание слайда:
Box and Whisker Plot

Слайд 63


Percentiles
Описание слайда:
Percentiles

Слайд 64


Percentiles
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Percentiles

Слайд 65


Standard Scores
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Standard Scores

Слайд 66


Standard Scores
Описание слайда:
Standard Scores

Слайд 67


Calculations of z-Scores
Описание слайда:
Calculations of z-Scores

Слайд 68


Standard Scores
Описание слайда:
Standard Scores



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