A test is conducted to establish whether there is a
A test is conducted to establish whether there is a connection between RPMs and fuel efficiency for a new engine designed to run on biofuel. The results of the test are shown in the table:
RPMs (in 100s) Miles per gallon
8.............. 53
30.............. 42
18.............. 48
50.............. 41
44.............. 46
Show the scatter diagram. Compute and interpret the covariance.
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