Question

what is the probability of rolling a prime number or a perfect square (addition) with a standard pair of dice

Answer 1

hmmm so you are rolling one dice or 2 dies at once?

Answer 2

2 dice

Answer 3

K so if we are throwing 2 dies the minimum sum is 2
and the maximum sum is 12
So what numbers btwn 2 and 12 including 2 and 12 are prime number?

Answer 4

im not sure what a prime number is

Answer 5

prime number is a number that doesnt have any factors except 1 and itself
For example 3 - it can only be divided by 1 and 3
Another example is 5 - 5 doesnt have any divisors except 5 and 1

Answer 6

3, 5, 7, 11,

Answer 7

correct ... also less noticeable 2
2 can only be divided by 1 and 2

Answer 8

So the prime numbers are 2,3,5,7,11

Answer 9

A perfect square is a number that can be squared and will result in an integer
or another way of looking at it is
is a number that has 2 of the same factors so for example
25=5*5
16=4*4

Now basically we can determine our perfect squares as follows
1*1=1
2*2=4
3*3=9
4*4=16
etc
So which number in btwn 2 and 12 are perfect squares?

Answer 10

1 2 and 3

Answer 11

1 ,2 and 3 are the factors
1,4,9 and 16 are known as perfect squares

Answer 12

ohh ok

Answer 13

So 4 and 9 are perfect squares in btwn 2 and 12

Answer 14

Now lets draw a chart of all the different options