The one-year return (in %) for 24 mutual funds is as follows:

a. Construct a frequency distribution using classes of 220 up to 210, 210 up to 0, etc.
b. Construct the relative frequency, the cumulative frequency, and the cumulative relative frequency distributions.
c. How many of the funds had returns of at least 0% but less than 10%? How many of the funds had returns of 10% or more?
d. What percentage of the funds had returns of at least 10% but less than 20%? What percent of the funds had returns less than20%?

-14.5-5 3.7 2.5 6.5 12.2 15.9 18.225.4 | -7.9 |-11.2 5.3 1.4 5.0 4.8 |-16.8 9.0 8.2 3.4 6.0 | -2.4 5.5 | -4.2 | -0.5