2. A real estate builder wishes to determine how house size (House) is influenced by family income (Income X1), family size (Size X2), and education of the head of household (School X3). House size is measured in hundreds of square feet, income is measured in thousands of dollars, and education is in years. The builder randomly selected 50 families and ran the multiple regression. The estimated coefficients are Coefficients: Estimate (Intercept) -1.6335 X1 0.4485 X2 4.2615 X3 -0.6517 Std. Error 5.8078 0.1137 0.8062 0.4319

each side has a different length.  

step-by-step explanation:

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

41*67/2=1373.5

step-by-step explanation:

i just used a calculator