Goliath National Bank is performing an audit of its current personal loans. You, as the auditor, are currently reviewing 10 cases. You have determined that these cases are independent, and are similar enough that they should each have the same probability of default. Moreover, you have estimated the probability of default for any individual case to be 0.4.

How many of these 10 cases do you expect to default?

In the previous question, what is the variance of the number of defaults?