a) I have attached an image of a probability tree diagram.
b) 0.02332 (please round to where you need)
The probability that Terri chooses a blue pen is 2/7. The probability that Terri chooses a red pen is 4/7. The probability that Terri chooses neither a red nor blue pen is 1/7.
2/7 x 4/7 x 1/7 = 0.02332
Hope this helps! :)
Answer:
13
Step-by-step explanation:
1) 3x - 12 = 2x + 1
2) solve and get x = 13
Answer:
11/14
Step-by-step explanation:
Firstly, to solve this problem, what we do is to know the number of multiples of 2 and the numbers of multiples of 3 between 1 and 14.
For 2, we have; 2, 4, 6 , 8 , 10 , 12 and 14
For 3, we have: 3,6,9 and 12
The probability of the result being a multiple of 2 is 7/14 = 1/2
The probability of the result being a multiple of 3 is 4/14 = 2/7
The probability of the result being a multiple of 2 or 3 is simply calculated by adding both probabilities: 2/7 + 1/2 = 11/14
