Question

What is the probability that a number chosen at random from the 2, 4,5

Answer 1

Answer:

Step-by-step explanation:

2 4 5 6

4 8 10 12

6 12 15 18

8 16 20 24

10 20 25 30

12 24 30 36

14 28 35 42

16 32 40 48

18 36 45 54

20 40 50 60

22 44 55 66

24 48 60 72

I have set this table up in a spreadsheet and colored in the squares as they appear in the table above. I have not counted any number as a member of 2 categories twice. An example would be 36 which is a multiple of 3 and a perfect square.

I have answered the question as though the question took on the properties of a dart board: you through a dart and whatever you hit is counted either as prime, a multiple of 3 or a perfect square

That said, there are

primes:                    2

multiples of 3:       24

Perfect squares:      4

Total number of choices: 12*4 = 48

Probability: 30 / 48 = 5/8 or 0.625

If you are supposed to use some other method of counting, please leave a note.