Explain in one or two sentences why the logistic regression model was used for this analysis, as opposed to using a linear regression approach.
Looking at the p-value for 'Age', what does this suggest about the trend in whether the party members survive as they get older? Is there an increase or decrease in the survival variable as they get older?
Consider a scenario where another expedition party, similar to the Donner party, set out for the same journey in 1850. Using the output above, given that there was a 38-year-old in the expedition, what would have been the probability of that party member surviving the expedition? Show your computation to get the answer.