Suppose y₁, are normally distributed with e() = µ, var( i=1 i=1([tex]y_i[/tex − y¯ )².
are y , s ¯ 2 independent?
is s 2 an unbiased estimator of σ²?

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.

Which statements about the system are true? check all that apply. y =1/3 x – 4 3y – x = –7 the system has one solution. the system consists of parallel lines. both lines have the same slope. both lines have the same y–intercept. the equations represent the same line. the lines intersect.