Question

7) There are 5 white balls, 8 red balls, 7 yellow balls and 4 green

Answer 1

Answer:

7. 1/3

8. 1/6

9. 13/24

10. 5/8

11. 17/24

12. 0

Step-by-step explanation:

First find the total number balls by summing the indiviudal number of balls:

Total = 5 + 8  + 7  + 4 = 24

Then, the find any probability divide the number of ways your selected situation can happen from the total:

$probability = \frac{number.of.possible.ways}{total.number.of.ways}$

A final step if you want is to reduce the fraction to its simplest value. For example,

$\frac{2}{4} =\frac{1}{2}$

7) 8/24 = 1/3

8) 4/24 = 1/6

9) (8+5)/24 = 13/24

10) (24 - 5 -4)/24 = 15/24 = 5/8

11) (24 - 7)/24 = 17/24

12) (0)/24 = 0

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