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Frequency Tables Yashira Rivera. Stem-and-Leaf-Plot A stem-and-leaf plot is a display that organizes data to show its shape and distribution. In a stem-and-leaf.

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Presentation on theme: "Frequency Tables Yashira Rivera. Stem-and-Leaf-Plot A stem-and-leaf plot is a display that organizes data to show its shape and distribution. In a stem-and-leaf."— Presentation transcript:

1 Frequency Tables Yashira Rivera

2 Stem-and-Leaf-Plot A stem-and-leaf plot is a display that organizes data to show its shape and distribution. In a stem-and-leaf plot each data value is split into a "stem" and a "leaf". The "leaf" is usually the last digit of the number and the other digits to the left of the "leaf" form the "stem". The number 123 would be split as: stem 12 leaf 3

3 Stem-and-Leaf-Plot The data: Math test scores out of 60 points: 35, 36, 38, 40, 42, 42, 44, 45, 45, 47, 48, 49, 50, 50, 50, 55, 57, 60, 60. Math Test Scores (out of 50 pts.) StemLeaf

4 Frequency Tables The frequency of a particular data value is the number of times the data value occurs. For example, if four students have a score of 80 in mathematics, and then the score of 80 is said to have a frequency of 4. A frequency table is constructed by arranging collected data values in ascending order of magnitude with their corresponding frequencies.

5 How to make a Frequency Table? Titles Data ScoresTallyFrequency Math Test Scores (out of 50 pts.)

6 Create a Frequency Table. The data: Math test scores out of 60 points: 35, 36, 38, 40, 42, 42, 44, 45, 45, 47, 48, 49, 50, 50, 50, 55, 57, 60, 60. StemLeaf Math Test Scores (out of 50 pts.)

7 Frequency Table ScoresTallyFrequency 31-39III IIIII IIII IIIII II2 Math Test Scores (out of 50 pts.)

8 Frequency Tables Why did you plan to attend Barry University? Close to Home-18 South Fl Area-37 Scholarships-23 Major-16 Friends-6

9 Why did you plan to attend Barry University? ChoicesTallyFrequency Close to Home18 South Fl Area37 Scholarships23 Major16 Friends6

10 Other Graphs….


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