In a housing project there are 350 households in which English is usually spoken, 50 in which Spanish is usually spoken, and 100 in which the language is other than English or Spanish. A researcher approaches a house at random to conduct an interview. What is the chance that the usual language in that household will NOT be English?
A)1/500 = .002
B)50/350 = .14
C)150/500 = .3
D)150/350 = .43

Question

Quizplus · Accepted Answer

The total number of households is 500 (350 English-speaking + 50 Spanish-speaking + 100 other languages). The number of households in which English is not spoken is 150 (50 Spanish-speaking + 100 other languages). Therefore, the probability that a randomly selected household does not speak English as the usual language is 150/500, which simplifies to 0.3 or 30%.

In a Housing Project There Are 350 Households in Which