Question

graph

Answer 1

Density curves have the exact same properties as the discrete problem. They are never outside of 0-1 and the area under the curve equals 1 exactly.

Answer 2

A, B, D and E?

Answer 3

So yes, the curve which goes below zero is out of contention. What is the area under B?

Answer 4

9

Answer 5

Not B.

Answer 6

0.9, actually, but yes, not B.

Answer 7

A, D, and E all have a total of 1.0 units underneath them. C goes negative, and B is missing some probability weight somewhere.

Answer 8

So, it is A D and E?

Answer 9

You got it.

Answer 10

thnak you.