Final answer:
The statement that about 75 percent of Californians over the age of five speak English at home is false; 42.3 percent of Californians speak a language other than English at home.
Step-by-step explanation:
The statement about approximately 75 percent of Californians over the age of five speaking English at home is false. According to the provided Language Survey, about 42.3 percent of Californians and 19.6 percent of all Americans over the age of five speak a language other than English at home. When looking at the probability statements based on the 281,000,000 people over age five living in the United States with 55,000,000 speaking a language other than English at home, 62.3 percent of this subset speaks Spanish, indicating that a significant number of the population uses languages other than English within their household.