To run the these figures to 3 decimal places
you need to count from the digit after the decimal point until you reach the 3rd number which is 2
so now the answer is 2470.283
This is because the decimal point lies between 2 and 7 and since 7 is great than 5 we add 1 to the 2 making it 3
I believe it’s the first one. 1.5 + 2 = 3.5
(1/2)(3/6)=1/4
The probability of rolling a head (or tail for that matter is 1/2)
The probability of rolling less than 4 with a die is 3/6)
Thus the probability of both occurring is 1/4