Question

In a housing project there are 350 households in which English is spoken, 50 in which Spanish is spoken, and 100 in which the language is other than English or Spanish. If a psychologist approaches a house at random to conduct an interview, the chance that the language in that household will NOT be English?a- .002b- .14c- .3d- .43

Answer 1

Answer: C. 0.3

Explanation:

Given : Number of English speaking households =350

Number of Spanish speaking households =50 (1)

Number of households in which the language is other than English or Spanish=100 (2)

Total households participates in this survey =350+50+100=500

No. of households not speak English =100+50=150 (Add (1) and (2))

If a psychologist approaches a house at random to conduct an interview, the chance that the language in that household will NOT be English will be :_

`\frac{\text{No. of households not speak English}}{\text{Total households}}\\\\=(150)/(500)\\\\=(3)/(10)=0.3`

Hence, the correct option is option (c).