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Chapter 10 – Day 12. Tuesday , April 23, 2019. Ch 10 Test Wednesday, 4/24/19 HW : TB470 #1-9 all (NOT online) Grab a quarter sheet from the back and answer the following questions: How many students were surveyed? Which interval contains the fewest data values?
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Chapter 10 – Day 12 Tuesday, April 23, 2019 Ch 10 Test Wednesday, 4/24/19 HW: TB470 #1-9 all (NOT online) Grab a quarter sheet from the back and answer the following questions: How many students were surveyed? Which interval contains the fewest data values? Which interval contains about 33% of the data? About what percent of the students live over 1.9 miles from school?
1 Date Title Page 4/11 10.3 Notes and Examples 52-53 4/11 10.3 HW 54 4/12 10.2 Histogram Challenge 55 4/15 Circle Graphs 56 4/15 HW 57 4/16 Constructing Circle Graphs58 4/16 HW 59 4/17 HW 60 4/18 HW 61 4/22 HW 62 4/23 HW 63
Whiteboard Review Materials: • Whiteboard maker • Whiteboard • Eraser • calculator • Take everything else off your desk
Problem 1 • What percent of the data is greater than 20? • What percent of the data is less than 17? • What percent of the data is between 7 and 32? • What percent of the data is between 17 and 27?
Problem 2 • Whose time spent is more spread out? • Who tends to spend more time on her homework?
Problem 3 The pie chart shows blood types of donors. • How many degrees are in the Type A wedge (round to nearest degree). • If 9 people were Type O, how many people were surveyed? • How many people were Type AB?
Problem 4 • Describe the shape of the distribution of test scores. • What measure of center is best for this data? • What measure of variation is best for this data? • How many test scores were there? • What percent of data was between 80 and 99?
Problem 5 • Display the data shown in a histogram. Create at least 3 bars.
Problem 6 The stem-and-leaf plot shows the weight in pounds of pumpkins. • What is the median weight? • What is the IQR? • What is the range? • How many pumpkins are under 29 pounds? • What was the most common weight?
Wrap Up • What are the 5 data displays we have done? • What do all of the percentages in a circle graph add up to? • What do all of the degrees in a circle graph add up to? • How do you calculate mean? • How do you find median? • How do you calculate IQR? • How do you calculate range? • What is mode? • What are the three measures of center? • What are the three measures of variation?