Percentage Body Fat Cannot Be Measured Directly, So It Has

Multiple Choice

Percentage body fat cannot be measured directly, so it has to be predicted from a series of skinfold measures. Suppose seven sites were measured (triceps, chest, midauxillary, subscapular, suprailiac, abdominal and thigh) . How many participants should be recruited for a multiple regression to be performed?

A) 105
B) 155
C) 85
D) 65