Question

Hattie has a box of coloured pens she takes a pen from the box and t random the probability that she takes a red pen is 0.4 work out the probability that she does not take a red pen the box contains blue ref and green pens there 15 blue and 15 green pens complete the following table
Color of pen: Blue. Red. Green
Number of pen: 15. 15
Probablity; 0.4

Answer 1

Answer:

total no of cases would be 12c2 (3+4+5)= total no of pens

now as cases for 2 pens to be of the same color you can either have them in 3c2 or 4c2 or 5c2 ways.

so adding up all the cases we get (3c2 +4c2 +5c2)/12c2.

now that'sfor you to calculate the answer.

CHEERS!!

Answer 2

Answer:

1-3/5

2-20

3-0.3

4-0.3

Step-by-step explanation: