for some reason, i really feel that some problmes in the textbook

are really ambiguous, or hard to understand what it asks for. Or

just because I am too stupid.

For example in 18.8 (b)

show class probability p/(p+n) minimize the sum of squared errors.

what does class probability means?

does it mean the probability of the positive example occur in the

set?

in order to minimize a function, it must be that some varible takes

some value to minimize it. Here, who takes the value of p/(p+n)?

any reason why the question is kept hard to understand?

there are other examples in the textbook which i just could not

understand what exactly it asks for?

maybe i just should not learn AI?