scatter plot test review.notebook · scatter plot test review.notebook march 16, 2018 tomatoes...
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Scatter Plot Test Review.notebook March 16, 2018
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Scatter Plot Test Review.notebook March 16, 2018
Miles Traveled Vacation Cost456 $458124 $287245 $328307 $41059 $238
12. A travel agency surveyed its customers to find out the average cost of a vacation compared to the miles traveled during the vacation. The results of the survey are shown in the table. Use the given data to make a scatter plot.
Scatter Plot Test Review.notebook March 16, 2018
1314. Does the scatter plot appear to have a positive correlation, negative correlation, or no correlation? negative correlation no correlation
Distance (mi)
Gas Mileage (mi/gal)
15. The table compares the gas mileage to the distance the car can travel on one tank of gas. Use the given data to make a scatter plot. Describe the correlation.
Positive Correlation
Scatter Plot Test Review.notebook March 16, 2018
Tomatoes Produced
Fertilizer (g)
16. The table relates the amount of fertilizer used on a tomato plant and the number of tomatoes produced by the plant. Use the given data to make a scatter plot.
5 10 15 20 25 30 35
240 280
340 320
360 380
420 400
17. The table compares the gas mileage to the distance the car can travel on one tank of gas. Use the given data to make a scatter plot. Describe the correlation.
positive relationship
Scatter Plot Test Review.notebook March 16, 2018
The speed of a sled is measured as its slides down a steep hill. The table gives the sled's speed at different elapsed times. Create a scatter plot of the data.
Time Elapsed
Speed of the Sled (mi/hr)
1 2 3 4 5 6 7 8 9
987654321
positive relationship
Year
Average Price ($)
19. The scatter plot shows the price of a majorleague baseball ticket from 1997 to 2006.
b. Write the slopeintercept form of equation (y = mx +b) for the line of fit shown in the scatter plot.
c. Use your equation to find the price of a ticket in 2009.
a. Use the points (2001, 17.60) and (2002, 18.75) to find the slope.
yx = 18.75 17.602002 2001
= 1.15
y = 1.15 x + 12
y = 1.15 (13) +12 = 26.95
Scatter Plot Test Review.notebook March 16, 2018
average maximum
Animal Longevity20.Draw a scatter plot and determine what relationship, if any, exists in the data.
b. Draw a line of fit for the scatter plot. c. Predict the maximum longevity for an animal with an average longevity of 33 years.
avg 12 25 15 8 35 40 41 20
max 47 50 40 20 70 77 61 54
positive correlation
approximately 65
You randomly survey students in your school about the color of their eyes. The results are shown in the tables. a. Make a twoway table. b. Find and interpret the marginal frequencies for the survey. c. For each eye color, what percent of the students in the survey are male? female? Organize the results in a twoway table. Explain what two of the entries represent.
Scatter Plot Test Review.notebook March 16, 2018