ISYE 6501 Midterm Quiz 2 with all the Correct Answers(Graded A+)

4/6/2020 Midterm Quiz 2 - GT Students and Verified MM Learners | Midterm Quiz 2 | ISYE6501x Courseware | edX

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Course Midter… Midter… Midter…

Midterm Quiz 2 - GT Students and Veried MM Learners

90 Minute Time Limit

Instructions

Work alone. Do not collaborate with or copy from anyone else.

You may use any of the following resources:

One sheet (both sides) of handwritten (not photocopied or scanned) notes

If any question seems ambiguous, use the most reasonable interpretation (i.e. don't be

like Calvin):

Good Luck!

This the beginning of Midterm Quiz 2. Please make sure that you submit all your

answers before the time runs out. Once you submit an answer to a question, you cannot

  

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4/6/2020 Midterm Quiz 2 - GT Students and Verified MM Learners | Midterm Quiz 2 | ISYE6501x Courseware | edX

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change it. There is no overall Submit button. 

Information for Question 1

There are ve questions labeled "Question 1."   Answer all ve questions.  For each of the

following ve questions, select the probability distribution that could best be used to model

the described scenario.  Each distribution might be used, zero, one, or more than one time

in the ve questions.

Question 1

0.0/1.4 points (graded) Number of people clicking an online banner ad each hour

Exponential 

You have used 1 of 1 attempt

Question 1

0.0/1.4 points (graded) Time between people clicking an online banner ad

Weibull 

You have used 1 of 1 attempt

Question 1

0.0/1.4 points (graded) Time from when a house is put on the market until the rst oer is received

Poisson 

You have used 1 of 1 attempt

Submit

Submit

Submit

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4/6/2020 Midterm Quiz 2 - GT Students and Verified MM Learners | Midterm Quiz 2 | ISYE6501x Courseware | edX

https://courses.edx.org/courses/course-v1:GTx+ISYE6501x+1T2020/courseware/f712bb2a96ff46b0bc8d775293bfc91d/1b57ff6ea64c40cf8f4eb69d2b… 3/26

Question 1

0.0/1.4 points (graded) Time from the start of a World Cup soccer match until a goal is scored

Poisson 

You have used 1 of 1 attempt

Question 1

0.0/1.4 points (graded) Number of hits to a real estate web site each minute

Binomial 

You have used 1 of 1 attempt

Questions 2a, 2b

5.0/10.0 points (graded)

Five classication models were built for predicting whether a neighborhood will soon see a

large rise in home prices, based on public elementary school ratings and other factors. The

training data set was missing the school rating variable for every new school (3% of the data

points).

Because ratings are unavailable for newly-opened schools, it is believed that locations that

have recently experienced high population growth are more likely to have missing school

rating data.

Model 1 used imputation, lling in the missing data with the average school rating from

the rest of the data.

Model 2 used imputation, building a regression model to ll in the missing school rating

data based on other variables.

Model 3 used imputation, rst building a classication model to estimate (based on

other variables) whether a new school is likely to have been built as a result of recent

population growth (or whether it has been built for another purpose, e.g. to replace a

very old school), and then using that classication to select one of two regression

Submit

Submit

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Version 2021
Category Exam (elaborations)
Included files pdf
Authors qwivy.com
Pages 25
Language English
Comments 0
Sales 8
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