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Listed below are altitudes (in thousands of feet) and outside air temperatures (in degreesF) recorded during a flight between two cities.
Altitude
2
12
16
20
26
32
33
Temperature
59
37
24
negative 4
negative 32
negative 39
negative 55
Use these data to complete parts (a) through (d) below.
Question content area bottom
Part 1
a. Construct a scatterplot. Choose the correct answer below.
A.
0
40
-60
60
Alt.
Temp.
A graph with a horizontal Altitude axis labeled from 0 to 40 in increments of 5, and a vertical Temperature axis labeled from negative 60 to 60 in increments of 10. On this graph, the following points are plotted: (2,negative 59), (12,negative 37), (16,negative 24), (20,4), (26,32), (32,39), and (33,55).
B.
0
40
-60
60
Alt.
Temp.
A graph with a horizontal Altitude axis labeled from 0 to 40 in increments of 5, and a vertical Temperature axis labeled from negative 60 to 60 in increments of 10. On this graph, the following points are plotted: (2,59), (12,37), (16,24), (20,negative 4), (26,negative 32), (32,negative 39), and (33,negative 55).
Your answer is correct.C.
0
40
-60
60
Alt.
Temp.
A graph with a horizontal Altitude axis labeled from 0 to 40 in increments of 5, and a vertical Temperature axis labeled from negative 60 to 60 in increments of 10. On this graph, the following points are plotted: (2,55), (12,39), (16,32), (20,4), (26,negative 24), (32,negative 37), and (33,negative 59).
D.
0
40
-60
60
Alt.
Temp.
A graph with a horizontal Altitude axis labeled from 0 to 40 in increments of 5, and a vertical Temperature axis labeled from negative 60 to 60 in increments of 10. On this graph, the following points are plotted: (2,negative 55), (12,negative 39), (16,negative 32), (20,negative 4), (26,24), (32,37), and (33,59).
Part 2
b. Briefly characterize the correlation in words. Choose the correct answer below.
strong negative correlation
Your answer is correct.
strong positive correlation
weak positive correlation
weak negative correlation
no correlation
Part 3
c. Estimate the correlation coefficient (or calculate the correlation coefficient exactly by using a calculator or software).
requals
enter your response here (Type an integer or decimal rounded to one decimal place as needed.)
Sagot :
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