Author Question: The covariance between height and running speed on the State College track team was equal to 28.21. ... (Read 36 times)

melina_rosy · **on:** Jun 20, 2018

The covariance between height and running speed on the State College track team was equal to 28.21. This tells us that the

a. relationship between height and speed is significant.
b. relationship between height and speed is negative.
c. the correlation is equal to the square root of 28.21.
d. the correlation is equal to 28.21.

Question 2

A newspaper headline writer found that the more adjectives she put in the titles of her articles, the greater the number of newspapers that were sold that day. This relationship between numbers of adjectives and newspaper sales must be

a. significantly positive.
b. significantly negative.
c. monotonic.
d. positive.