英语翻译A survey of households in a small city showed that there

英语翻译
A survey of households in a small city showed that there was an average(arithmetic mean) of 3.2 persons per household and an average of 2.5 radios per household.Based on these results,if 48000 people live in the city,which of the following is the best estimate of the total number of radios in the households of this city?