Researchers collected data about television ownership from 100 households. They found that 30 of the households owned 1 television, 55 of those households owned 2 televisions, and 15 of those households owned 3 televisions. What is the mean number of televisions owned by the households in the sample?

a. 2.00

b. 1.85

c. 1.52

d. 2.25

e. 2.74