A Grocery Store Examines Its Shoppers Product

Honesty? 3

Possible help?!?

I need 14 help! The problem is: a grocery store checks its spice selection: it is possible to buy random spice 0.31 pieces, 0.36 snacks, and spice fruit and snacks 0.09.

A: Explore the possibility that randomly selected sperm will buy a fruit or snack.

B: Assuming a randomly selected customer buys fruit or breakfast, what is the probability that the customer buys fruit?

Thanks!

1) P (F u S) = P (F) + P (S) P (FS) = .31 + .36 .09 = .58 (This follows the basic principle of grouping 'events' as they Overlaps occur, you need to lower your cross once to avoid double counting.)

B) Not sure, but let me try. Follow the principle of conditional honesty.

P (F | F u S) = P (F (F u S)) / P (F u S) = P (F) / P (F u S) =

0.31 / 0.58 = 0.53448

P (F (F u S)) = P (F) The reason is that the intersection between F and F or S is only F because F is completely in F or S. At this point, look at the van diagram of F or S. Paint the interior (such as yellow). Now shade in F (for example red). Note the orange part. Of course, this is just F.

A Grocery Store Examines Its Shoppers Product