A script that modifies Problem 14 and will prompt the user for a number and print “error” if the user enters 0, or it will pass the user’s number to the function and print the result.

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Chapter 4, Problem 15E

To determine

To write:

A script that modifies Problem 14 and will prompt the user for a number and print “error” if the user enters 0, or it will pass the user’s number to the function and print the result.

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(c) Because logistic regression predicts probabilities of outcomes, observations used to build a logistic regression model need not be independent. A. false: all observations must be independent B. true C. false: only observations with the same outcome need to be independent I ANSWERED: A. false: all observations must be independent. (This was marked wrong but I have no idea why. Isn't this a basic assumption of logistic regression)

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Spam filters are built on principles similar to those used in logistic regression. We fit a probability that each message is spam or not spam. We have several variables for each email. Here are a few: to_multiple=1 if there are multiple recipients, winner=1 if the word 'winner' appears in the subject line, format=1 if the email is poorly formatted, re_subj=1 if "re" appears in the subject line. A logistic model was fit to a dataset with the following output: Estimate SE Z Pr(>|Z|) (Intercept) -0.8161 0.086 -9.4895 0 to_multiple -2.5651 0.3052 -8.4047 0 winner 1.5801 0.3156 5.0067 0 format -0.1528 0.1136 -1.3451 0.1786 re_subj -2.8401 0.363 -7.824 0 (a) Write down the model using the coefficients from the model fit.log_odds(spam) = -0.8161 + -2.5651 + to_multiple + 1.5801 winner + -0.1528 format + -2.8401 re_subj(b) Suppose we have an observation where to_multiple=0, winner=1, format=0, and re_subj=0. What is the predicted probability that this message is spam?…

Answer 2

Question

Chapter 4, Problem 15E

To determine

To write:

A script that modifies Problem 14 and will prompt the user for a number and print “error” if the user enters 0, or it will pass the user’s number to the function and print the result.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 4, Problem 15E

To determine

To write:

A script that modifies Problem 14 and will prompt the user for a number and print “error” if the user enters 0, or it will pass the user’s number to the function and print the result.

Expert Solution & Answer

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Answer 4

Question

Chapter 4, Problem 15E

To determine

To write:

A script that modifies Problem 14 and will prompt the user for a number and print “error” if the user enters 0, or it will pass the user’s number to the function and print the result.

Expert Solution & Answer

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Answer 5

Chapter 4, Problem 15E

To determine

To write:

A script that modifies Problem 14 and will prompt the user for a number and print “error” if the user enters 0, or it will pass the user’s number to the function and print the result.

Answer 6

Chapter 4, Problem 15E

To determine

To write:

A script that modifies Problem 14 and will prompt the user for a number and print “error” if the user enters 0, or it will pass the user’s number to the function and print the result.

Answer 7

Chapter 4, Problem 15E

To determine

To write:

A script that modifies Problem 14 and will prompt the user for a number and print “error” if the user enters 0, or it will pass the user’s number to the function and print the result.

Answer 8

Expert Solution & Answer

Answer 9

Expert Solution & Answer

Answer 10

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Answer 11

Ch. 4 - Prob. 4.1P Ch. 4 - Prob. 4.2P Ch. 4 - Prob. 4.3P Ch. 4 - Prob. 4.4P Ch. 4 - Prob. 4.5P Ch. 4 - Prob. 1E Ch. 4 - Prob. 2E Ch. 4 - Prob. 3E Ch. 4 - Prob. 4E Ch. 4 - Prob. 5E

A script that modifies Problem 14 and will prompt the user for a number and print “error” if the user enters 0, or it will pass the user’s number to the function and print the result.

Solution Summary: The author explains how to write a script that modifies Problem 14 and prints "error" if the user enters 0 or passes user's number to the function and print the result.

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To write:

A script that modifies Problem 14 and will prompt the user for a number and print “error” if the user enters 0, or it will pass the user’s number to the function and print the result.

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Chapter 4 Solutions

A script that modifies Problem 14 and will prompt the user for a number and print “error” if the user enters 0, or it will pass the user’s number to the function and print the result.

Solution Summary: The author explains how to write a script that modifies Problem 14 and prints "error" if the user enters 0 or passes user's number to the function and print the result.

Concept explainers

Videos

To write: A script that modifies Problem 14 and will prompt the user for a number and print “error” if the user enters 0, or it will pass the user’s number to the function and print the result.

Want to see the full answer?

Chapter 4 Solutions

To write:

A script that modifies Problem 14 and will prompt the user for a number and print “error” if the user enters 0, or it will pass the user’s number to the function and print the result.