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Chapter 12: Q.44 (page 718)

Hand draw a smooth curve on the graph that shows the flow of the data.

Short Answer

Expert verified

The scatter plot is shown below:

Step by step solution

01

Given information

Given in the question that the table,

Year
# flu cases diagnosed
# flu deaths
Pre-1981
91
29
1981
319
121
1982
1,170
453
1983
3,076
1,482
1984
6,240
3,466
1985
11,776

6,878
1986
19,032
11,987
1987
28,564
16,162
1988
35,447
20,868
1989
42,674
27,591
1990
48,634
31,335
1991
59,660
36,560
1992

78,530		41,055
1993
78,834

44,730
1994

71,874
49,095
1995
68,505
49,456
1996
59,347
38,510
1997
47,149
20,736
1998
38,393
19,005
1999
25,174
18,454
2000
25,522
17,347
2001
25,643
17,402
2002
26,464
16,371
Total802,118
489,093
02

Explanation

Use MS excel to plot the data. Follow the steps shown below:

1. Enter data in excel worksheet as shown below:

2. Select data of variable "Year" and "Number of AIDS cases diagnosed" and go to "Insert" menu.

3. Click on "scatter plot". The graph will appear.

The scatter plot is shown below:

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Most popular questions from this chapter

Due to erosion, a river shoreline is losing several thousand pounds of soil each year. A linear equation that expresses the total amount of soil lost per year is y=12,000x.

How many pounds of soil does the shoreline lose in a year?

Use the following information to answer the next five exercises. A random sample of ten professional athletes produced the following data where xis the number of endorsements the player has and yis the amount of money made (in millions of dollars).

x
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draw the line of best fit on the scatter plot

Amelia plays basketball for her high school. She wants to improve to play at the college level. She notices that the number of points she scores in a game goes up in response to the number of hours she practices her jump shot each week. She records the following data:

X (hours practicing jump shot)
 Y (points scored in a game)
515
722
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1133
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A specialty cleaning company charges an equipment fee and an hourly labor fee. A linear equation that expresses the total amount of the fee the company charges for each session is y=50+100x.

What are the independent and dependent variables?

Does the scatter plot appear linear? Strong or weak? Positive or negative?
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