The table to the right gives the per capita gross national product and the per capita expenditure on defense for eight developed countries. Gross domestic product (GDP) is a measure of the total economic output of a country in monetary terms. Per capita GDP is the GDP averaged over every person in the country. Complete parts a though c.
Country | Per Capita GDP ($) | Per Capita Defense ($) |
A | 36,533 | 927 |
B | 33,405 | 800 |
C | 34,005 | 513 |
D | 35,123 | 1333 |
E | 33,908 | 344 |
F | 47,258 | 1240 |
G | 35,415 | 1023 |
H 45,758 1700
A. Make a scatter diagram for the data.
A.
200005500002000GDPDefense Spending
A scatterplot with a horizontal axis labeled G D P from 20000 to 55000 in increments of 5000 and a vertical axis labeled Defense Spending from 0 to 2000 in increments of 200 contains 8 points. (37500, 900); (32500, 800); (35000, 500); (35000, 1300); (35000, 300); (47500, 1200); (35000, 1000); (45000, 1700). All coordinates are approximate.
B.
200005500002000GDPDefense Spending
A scatterplot with a horizontal axis labeled G D P from 20000 to 55000 in increments of 5000 and a vertical axis labeled Defense Spending from 0 to 2000 in increments of 200 contains 8 points. (32500, 800); (32500, 650); (35000, 600); (35000, 1450); (35000, 100); (35000, 1400); (35000, 1000); (35000, 1700). All coordinates are approximate.
C.
200005500002000GDPDefense Spending
A scatterplot with a horizontal axis labeled G D P from 20000 to 55000 in increments of 5000 and a vertical axis labeled Defense Spending from 0 to 2000 in increments of 200 contains 8 points. (37500, 1700); (32500, 500); (35000, 1000); (35000, 800); (35000, 900); (47500, 300); (35000, 1300); (45000, 1300). All coordinates are approximate.
D.
200005500002000GDPDefense Spending
State whether the two variables appear to be correlated, and if so, state whether the correlation is positive, negative, strong, or weak.
A.
The two variables appear to be correlated and the correlation is strong and positive.
B.
The two variables appear to be correlated and the correlation is weak and negative.
C.
The two variables appear to be correlated and the correlation is weak and positive.
D.
The two variables appear to be correlated and the correlation is strong and negative.
E.
The two variables do not appear to be correlated.
C. Suggest a reason for the correlation or lack of correlation.
A.
The higher a country's per capita GDP, the less it can spend on per capita national defense.
B.
The higher a country's per capita GDP, the more it can spend on per capita national defense.
C.
There is no correlation between a country's per capita GDP and spending on per capita national defense.
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Jeans Purchased Annually | |||||
---|---|---|---|---|---|
0 | 1 | 2 | 3 or More | Total | |
Under 12 | 0 | 64 | 79 | 57 | 200 |
12-18 | 10 | 69 | 76 | 65 | 220 |
19-25 | 21 | 69 | 114 | 56 | 260 |
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