Assume that breast cancer affects .8 percent of the female population

Construct a contingency table with categories child or adult, M or F (male or female), survived or died based on the Titanic data:

What conclusion do you draw from this data?

Problem 2

Assume that breast cancer affects .8 percent of the female population between 40 and 50 years of age. There are two kinds of test results: true positive (you have it) and false positive (the test indicates you do have it, but you really do not). Assume Mammograms are 90% accurate at spotting people who have breast cancer (true positive), and are 93% accurate at spotting people who do not (true negative). What are the false negative and false positive accuracies? If a female tests positive for breast cancer, compute the likelihood that she indeed has the cancer.