The three decimals that Mrs. Ibara wote were
4.15, 6.30 and 8.45
Now we have to find the other two numbers that are kept blank.
For this purpose, firstly we have to subtract the first 2 decimal numbers and find out the difference.
6.30 - 4.15 = 2.15
Now let us check the difference between the second and the third decimals.
8.45 - 6.30 = 2.15
So the difference is again the same. Then the fourth number will be
8.45 + 2.15 = 10.6
The fifth number will be
10.6 + 2.15 = 12.75
The blank spaces will be 10.6 and 12.75.
You have two conditions, the letter you draw must be E and the number you roll must be even, and both of those conditions have to happen at the same time (aka they're dependent on each other). Because of that, you have to multiply the probability you'll get the first condition by the probability you get the second one.
You have 5 vowels, so the probability of drawing E, one of the vowels, is 1/5.
You have 6 numbers on your standard die. Three of the numbers, 2, 4, 6 are even. The probability of rolling an even number is 3/6 = 1/2.
Multiply these two probabilities together to get the probability of both of those happening at the same time:
(1/5)*(1/2) = 1/10 = 0.100
the intersecting point of the two lines is (2.2999999,4.1)
