SOLUTION: A die rolled .Find probability P(even or prime) P(at least 5)

Question 393079: A die rolled .Find probability
P(even or prime)
P(at least 5)
Found 2 solutions by sudhanshu_kmr, Edwin McCravy:
Answer by sudhanshu_kmr(1152) (Show Source): You can put this solution on YOUR website!
In a die, no. of even number = 3 (i.e 2,4,6),
no. of prime number = 3 (i.e 2,3,5)
no. of prime which is also even = 1 (i.e 2)
P(A U B) = P(A) + P(B) -P(A /\ B) /\ -intersection sign

Probability (even or prime) = 3/6 +3/6 -1/6 = 5/6

no. of faces greater than or equal to 5 = 2 ( i.e 5,6)

Probability ( at least 5) = 2/6

Answer by Edwin McCravy(20060) (Show Source): You can put this solution on YOUR website!
P(even or prime)
P(at least 5)

P(any one roll) = , "OR" implies "ADD" (if events can't both happen at the same time) ---------------------------- P(even or prime) = P(2 or 3 or 4 or 5 or 6) = P(2) + P(3) + P(4) + P(5) + P(6) = + + + + = ---------------------------- P(at least 5) = P(5 or 6) = P(5) + P(6) = + = = Edwin

RELATED QUESTIONS
Find each probability if a die is rolled 4 times P(exacty one 3) P(exacty three 3s)... (answered by edjones)
Question: A die is rolled and a spiner (4 sides) is spun. Find the probability: P ( an... (answered by stanbon)
A die rolled 3 time. Find probability P(three even numbers) P(no 4s) thank you so... (answered by robertb)
Suppose a die is rolled twice and let A={first toss is a prime} B={second toss is even} (answered by math_tutor2020)
a 6- sided die is rolled. find P(3 or... (answered by solver91311)
Rolling a Die A single die is rolled 4 times. Find the probability of getting at least... (answered by ikleyn)
Suppose a die is rolled twice and let A = {first toss is a prime} C = {second toss is (answered by ikleyn,math_tutor2020,greenestamps)
A die is rolled. What is the probability of rolling a prime number OR an even... (answered by checkley71)
An 8-sided die is rolled. Find P(4 or prime). i need to find the... (answered by Edwin McCravy)