Answer Happy

The correlation between two features is - 0.85. What does this value mean? The features show a curvilinear relationship As the value of one feature decreases the value of the second feature increases As the value of one feature increases the value of the second feature also increases The features are not linearly related

Given the following percentages about breast cancer, what is the probability that a woman has cancer if she has a positive mammogram result? (a) 1% of women have breast cancer. (b) 90% of mammograms detect breast cancer when it is there! (c) 8% of mammograms detect breast cancer when it's not there! 20.5% O 8% O 10.2% O 12.2%