Question

question 31 of 40
these dot plots show hourly earnings for a sample of workers in two different careers.

what are the differences between the centers and spreads of these earning distributions?
select two choices: one for the centers and one for the spreads.
a. spreads: the hourly earnings for career b are more spread out.
b. centers: career a has greater median hourly earnings than career b.
c. spreads: the hourly earnings for career a are more spread out.
d. centers: career b has greater median hourly earnings than career a.

Explanation:

1. Centers (Median): Count the total data points for each career. Career A has 15 data points, so the median is the 8th value, which is $25. Career B has 25 data points, so the median is the 13th value, which is $35. Thus, Career B has a greater median.
2. Spreads: Career A's data ranges from $15 to $35, while Career B's data ranges from $20 to $80. Career B's earnings cover a wider range, so they are more spread out.

Answer:

A. Spreads: The hourly earnings for career B are more spread out.
D. Centers: Career B has greater median hourly earnings than career A.