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MTH 120 - Intro to Descriptive Statistics

MTH 120 - Intro to Descriptive Statistics - 10.1 Frequency...

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10.1 – Frequency Distributions & Graphs MTH-120 Grades A IIII IIII B IIII IIII I C IIII IIII IIII I D IIII IIII F IIII
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10.1 – Frequency Distributions & Graphs MTH-120 Grades A IIII IIII 9 B IIII IIII I 11 C IIII IIII IIII I 16 D IIII IIII 10 F IIII 4
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10.1 – Frequency Distributions & Graphs MTH-120 Grades A IIII IIII 9 18% B IIII IIII I 11 22% C IIII IIII IIII I 16 32% D IIII IIII 10 20% F IIII 4 8% Total 50 50 100%
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MTH 120 Grades 10.1 – Frequency Distributions & Graphs MTH-120 Grades 16 20 A 8 12 B C D F 0 4 MTH-120 Grades 20% 8% MTH-120 Grades A 9 18% A B C B 11 C 16 22% 32% D F D 10 F 4
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10.1 – Frequency Distributions & Graphs States' Sales Tax Rates 20 12 16 8 0 4 0 t < 1% 1 t < 2% 2 t < 3% 3 t < 4% 4 t < 5% 5 t < 6% 6 t < 7% 7% t
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10.1 – Frequency Distributions & Graphs MTH-120 Grades 20 12 16 4 8 0 A B C D F
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10.1 – Frequency Distributions & Graphs MTH-120 Grades 16 20 4 8 12 0 A B C D F MTH-120 Grades 16 20 A 8 12 B C D 0 4 F
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10.2 – Measures of Central Tendency Mean (Average) The number found by adding the data and then dividing by the number of values in the data set. Median The middle number when all of the numbers in the data set are arranged in order of size. Note : When the number of values in the data set is an even number, the median is the average of the middle two numbers. Mode The number that occurs most frequently. If b th th i d • If no number occurs more than once, there is no mode. • It is possible to have more than one mode.
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Raw Data To answer the questions, we should first convert the frequency table into a table of d t N Salary 1 $25,000 raw data.
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