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Q1and Q2 need to be rounded to the nearest 100. Q4 needs rounding to the nearest 10. This is not specified in the question but does return the correct answers.
For those who found a correct formula and the right answer to q1, and is now struggling with q2.
By the way question is formulated, I thought that 30000 in calculation for q1 should be changed to 250000, and we should deduct from our new result the result we got in q1. Nope.
Looks like they are asking for a difference in the whole formula result, if variable in question is multiplied to the newly found coefficient – vs without this coefficient.
Correct way to solve it is:
1. As above, 30000 in calculation for q1 should be changed to 250000.
2. Copy that calculation and remove the multiplier of 250000 (or change it to 1, just for a sake of beauty ))).
See what we did? We removed coefficient for the variable in question!
Now you have two results. Their difference is your answer.
Pls remember to round to the nearest 100!Hope admins will be ok with it, as I am explaining the route, not disclosing exact numbers. The way original question is formulated is truly confusing.
Thanks Jara! I was struggling from day to night for this dmn question, not able to figure it out until I saw your notes before sleep. And I wanna leave some reminds for the last question:
1. Simply add on the thousand into the formula
2. Take this to count for the differences with the original answerHi,
I have applied the formula given y = intercept + aX1 + bX2 + cX3 + d X4 on the scenario and still could not get the answer. Wonder if there’s any rounding work done in the calculation? I am getting 46719 for the 1st question if no rounding has been done during the calculation. And its incorrect
Thank you!!
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