By one estimate, 3% of all Siberian Husky puppies are born with two different colored eyes (called
heterochromia iridum). For random samples of 50 Siberian Husky puppies, what are the mean and
standard deviation of the number of puppies that will have two different colored eyes?
(A) � = 0.03, � = 0.024
(B) � = 0.03, � = 0.171
(C) � = 1.5, � = 1.206
(D) � = 1.5, � = 1.455
(E) � = 3, � = 50

  q

step-by-step explanation:

each line from a vertex to the midpoint of the opposite side is called a median. the point where the medians intersect, point q, is the centroid.

the centroid of δabc is point q.

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)