A6-foot person standing 15 feet from a streetlight casts a 15-foot shadow. two similar triangles are formed. one triangle is formed by the person and the shadow that the person casts. a second triangle is formed by the streetlight and the ground from the base of the streetlight to the end of the shadow.  the street light times taller than the person.

Astudy found that the variance in the number of vehicles owned or leased by subscribers to a magazine is .094. assume a sample of 12 subscribers to another magazine provided the following data on the number of vehicles owned or leased: 1,1,1,0,3,2,1,1,2,1,0, and 1 a) compute the sample variance in the number of vehicles owned or leased by the subscribers (to 4 decimals). b)test the hypothesis to determine whether the variance in the number of vehicles owned or leased by subscribers of the other magazine differs from .calculate the value of the test statistic (to 3 decimals).