survey of 52 households a find the percentile rank of 2 bif

survey of 52 households

a. find the percentile rank of 2

b.if the sample accurately reflects the population, then what % of households have at most two vehicles

Solution

a)

percentile rank of x = number of scores below x/ number of scores * 100

=>

= 15 /52 * 100

= 28.85% = 29th percentile

b)

percent of households have at most two vehicles

= (2+12+15)/52 * 100

= 55.77%