Range and Standard Deviation Mini-Quiz 1. Find the Range and Standard of the following set of data {3,13,22,22,11,3,3} (Round to the nearest tenth) Statistics.

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Presentation transcript:

Range and Standard Deviation Mini-Quiz 1. Find the Range and Standard of the following set of data {3,13,22,22,11,3,3} (Round to the nearest tenth) Statistics - Review

Class Greeting

Objectives The student will be able to: 1.Interpret information from pie charts. 2.Construct a pie chart.

Pie charts can be thought of as circle graphs. Whole circle 100% Pie Charts To find the percent represented by each part, first count the number of parts the circle is cut up into and then divide 100% by the number of parts. 100% ÷ number of parts

A drinks machine dispenses 500 drinks on a Monday. The information is displayed in the pie chart. Use the information to find the number of each drink sold. tea milk squash coffee Pie Charts Milk 10% Squash 40% Each part is 100% ÷ 10 = 10% Coffee 30% sold Tea 20%

Step 1: Total frequency if not given Step 2: Find fractions of 360º (360º  Total Frequency) Step 3: Multiply each group by the answer to Step 2 Step 4: Draw the pie chart Step 5: Label carefully Total300 In a survey, people were asked to indicate which one of five sports they liked best. The information is given in the table. Display the information in a pie chart. Rugby Football Cricket Ice Hockey Favorite Sport Squash30 Constructing Pie Charts

Total300 Drawing Pie Charts In a survey, people were asked to indicate which one of five sports they liked best. The information is given in the table. Display the information in a pie chart. Rugby Football Cricket Ice Hockey Favorite Sport Squash30

Total300 Rugby Drawing Pie Charts In a survey, people were asked to indicate which one of five sports they liked best. The information is given in the table. Display the information in a pie chart. Rugby Football Cricket Ice Hockey Favorite Sport Squash30

Total300 Drawing Pie Charts In a survey, people were asked to indicate which one of five sports they liked best. The information is given in the table. Display the information in a pie chart. Rugby Football Cricket Ice Hockey Favorite Sport Squash30 Rugby

Total300 Rugby Football Cricket Ice Hockey Favorite Sport Squash30 Football Drawing Pie Charts In a survey, people were asked to indicate which one of five sports they liked best. The information is given in the table. Display the information in a pie chart. Rugby

Total300 Drawing Pie Charts In a survey, people were asked to indicate which one of five sports they liked best. The information is given in the table. Display the information in a pie chart. Rugby Football Cricket Ice Hockey Favorite Sport Squash30 Rugby Football

Total300 Cricket Drawing Pie Charts In a survey, people were asked to indicate which one of five sports they liked best. The information is given in the table. Display the information in a pie chart. Rugby Football Cricket Ice Hockey Favorite Sport Squash30 Rugby Football

Total300 Rugby Football Cricket Ice Hockey Favorite Sport Squash30 Drawing Pie Charts In a survey, people were asked to indicate which one of five sports they liked best. The information is given in the table. Display the information in a pie chart. Rugby Football Cricket

Total300 Rugby Football Cricket Ice Hockey Favorite Sport Squash30 Ice Hockey Squash Drawing Pie Charts In a survey, people were asked to indicate which one of five sports they liked best. The information is given in the table. Display the information in a pie chart. Rugby Football Cricket

Total300 Rugby Football Cricket Ice Hockey Favorite Sport Squash30 90 o 108 o 54 o 72 o 36 o Drawing Pie Charts In a survey, people were asked to indicate which one of five sports they liked best. The information is given in the table. Display the information in a pie chart. Rugby Football Cricket Ice Hockey Squash

The pie chart gives information about the bills paid by a Water Company. (a) Work out the size of the angle representing Wages. (a) Work out the size of the angle representing Wages. (b) Work out the amount it spent on Rates. (b) Work out the amount it spent on Rates. Hint: The Water Company spent £ on Materials. Hint: The Water Company spent £ on Materials. º) (a) 30%(360 º) º) 0.3(360 º) º Answer: 108 º (b) Let x = Total Paid ) = 24%(x ) = £18,000 Total Paid = £75,000 Rates = £75,000(21%) Rates = £75,000(0.21) Rates = £15,750

Objective: The students will be able to Interpret information from pie charts and Construct pie charts. Lesson Summary:

Objective: List outcomes of chance experiments involving equally likely outcomes and represent probabilities of those outcomes using fractions, decimals and percentages. Preview of the Next Lesson:

Homework Statistics HW 6 and HW 7