Question

Please help me with this (If you can). I've been through so many different tutors and they weren't able to help.

Answer 1

Step-by-step explanation:

Here, we want to get the probability given

What this mean is that we draw a card D and without replacing it, we draw an S

The probability of drawing a card D is the number of cards labelled D divided by the total number of cards

We have two D cards out of a total 15

The probability of drawing a D card is:

`(2)/(15)`

Now, we want to draw an S card

Since 1 D card has been drawn, we are left with 14 total cards

The probability of drawing an S card is the number of S cards divided by the total number of cards

Mathematically, we have that as 1/14

The probablity of P(D and S) will be:

`(2)/(15)*(1)/(14)\text{ = }(1)/(105)`