9'3 Organizing and Presenting Data

1
9.3 Organizing and Presenting Data

• Frequency Table Tally sheet of intervals and
  how often the interval occurs.
• Histogram Bar graph that show intervals of
  data.

2

• Students score on the quiz
• 15 20 7 11 12 5 19 6
• 5 11 16 17 15 12 14 17 19

• Construct a Frequency Table, based on the data.
  Use the range for A 20 19, B 16 18,
  C 14 15, D 12 13, F 0 11.

2. Construct a Histogram.
3
18, 15, 20, 7, 11, 12, 5, 19, 6, 5,
11, 16, 17, 15, 12, 14, 17, 19
Interval Tally Frequency
0 11
6
12 13
2
14 15
3
4
16 18
19 20
3
4
Histogram
What percent of students scored higher than a D?
6 5 4 3 2 1 0
14 15
0 11
16 18
12 13
19 20
55
Students Quiz scores
5
Make a frequency graph and histogram from the
following data
Average Temperature for the Months
in Illinois 18 23 45 55 58
68 75 68
60 50 40 20
Use 15 degree intervals starting at 15 degrees.
6
Frequency Table
Interval Tally Frequency
15 - 29
3
30 44
1
45 59
4
3
60 74
75 90
1
7
Histogram
What is percent for temp over 55?
42
4 3 2 1 0
60 74
45 59
75 89
30 44
15 29
Average Temperature Months in Illinois
8
Evaluate the expression.
9
The average age of five employees at Johnsons
Hardware is 29. What is the age of the fifth
employee if the ages of the other employees are
19, 24, 30, and 26?
10
Solve
11
Homework

• Pg 356 1 9, 16 23