QUESTION 3 The table below present variable X1 as a linear function of X2 and X3 .
Compute the r12, 113 and r23. If 12 pairs of readings (X2 , X3).
Produce the values of X1 :
X1 4.6 5.3 3.5 4.9 3.7 4.0 5.9 3.9 3.8 3.3 5.8 5.0
X2 3.8 4.0 3.0 4.3 3.2 3.1 3.6 2.9 3.3 2.3 4.2 3.8
X3 3 5 1 6 3 2 5 4 5 1 7 4

Find the missing factor. 7s2 + 25s + 12 = (s + 3)( ).

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.