Question

There are 2 red pens, 3 blue pens, 1 black pen, and 4 green pens in a desk drawer. You randomly choose one. Find each probability as a FRACTION in SIMPLEST FORM. Total Pens: __________ 1) P (red) ____________ 2) P (black) ____________ 3) P (purple) ____________ 4) P (not green) ____________ 5) P (black or red) __________ 6) P (orange) _________

Answer 1

Answer:

total = 10

1. 1/5

2. 1/10

3. 0/10

4. 3/5

5. 3/10

6. 0/10

Step-by-step explanation:

total;

The sum of all pen types is: 2 + 3 + 1 + 4 = 10

Pen types are:

   red

   blue

   black

   green

1. P (red)

There are 2 red pens, so the fraction is 2/10 which when simplified is 1/5

2. P (black)

There is one black pen, so simplified it will be 1/10

3. P (purple)

There are no purple pens, so its just 0/10

4. P (not green)

There are ten pens total. 4 of them are green, so we subtract the number of green pens to the number of pens total, 10 - 4 = 6

So 6/10 which simplified is 3/5

5. P (black or red)

We find the sum of red and black pens, so its 3/10 which cannot be simplified any further

6. P (orange)

There are no green pens, so its 0/10