predicted probability = 0.0493 %3D O predicted probability = 0.0062 %3D O predicted probability = 0.3543 predicted probability = 1.4867 %3D

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predicted probability = 0.0493
%3D
O predicted probability = 0.0062
%3D
predicted probability = 0.3543
%3D
predicted probability = 1.4867
%3D
Transcribed Image Text:predicted probability = 0.0493 %3D O predicted probability = 0.0062 %3D predicted probability = 0.3543 %3D predicted probability = 1.4867 %3D
A Logistic Regression model was used for classifying common brushtail
possums into their two regions. The outcome variable takes value 1 if the
possum was from Victoria and 0 otherwise. We consider five predictors:
sex_male (an indicator for a possum
being male), head length, skull width, total length, and tail length. A summary
table is provided below.
Estimate
Std. Error
Z value
Pr(>||I)
(Intercept)
33.5095
9.9053
3.38
0.0007
sex_male
-1.4207
0.6457
-2.20
0.0278
0.0231
skull_width
total_length
tail_length
-0.2787
0.1226
-2.27
0.5687
0.1322
4.30
0.0000
-1.8057
0.3599
-5.02
0.0000
Suppose we see a brushtail possum at a zoo in the US, and a sign says the
possum had been captured in the wild in Australia, but it doesn't say which
part of Australia.
However, the sign does indicate that the possum is female, its skull is about
53 mm wide, its total length is 93 cm and its tail is 40 cm long. What is the
predicted probability that this possum is from Victoria? Choose an option
that is closest to your answer.
Transcribed Image Text:A Logistic Regression model was used for classifying common brushtail possums into their two regions. The outcome variable takes value 1 if the possum was from Victoria and 0 otherwise. We consider five predictors: sex_male (an indicator for a possum being male), head length, skull width, total length, and tail length. A summary table is provided below. Estimate Std. Error Z value Pr(>||I) (Intercept) 33.5095 9.9053 3.38 0.0007 sex_male -1.4207 0.6457 -2.20 0.0278 0.0231 skull_width total_length tail_length -0.2787 0.1226 -2.27 0.5687 0.1322 4.30 0.0000 -1.8057 0.3599 -5.02 0.0000 Suppose we see a brushtail possum at a zoo in the US, and a sign says the possum had been captured in the wild in Australia, but it doesn't say which part of Australia. However, the sign does indicate that the possum is female, its skull is about 53 mm wide, its total length is 93 cm and its tail is 40 cm long. What is the predicted probability that this possum is from Victoria? Choose an option that is closest to your answer.
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