Answer:
a. 5/15 or 1/3
b. 6/15 or 2/5
c. 7/15
d. 11/15
e. 10/15 or 2/3
Step-by-step explanation:
a. 1,2,3,4 and 5 are the numbers which are less than six. Five numbers in a total of Fifteen balls So 5/15 or 1/3 in a lowest term
b. 10, 11, 12, 13, 14 and 15 are the numbers which are greater than nine. That's Six numbers in a total of Fifteen balls
c. even numbers
2,4,6,8,10,12 and 14. seven balls in a total of Fifteen balls in a jar so 7/15
d. formula: P(A or B) = P(A) + P(B)
A= 5/15( less than 6 )
B= 6/15 (greater than 9)
5/15 + 6/15 = 11/15
e. formula P(A or B)= P(A) + P(B) - P(A and B)
P(A) = 1,2,3,4,5
P(B) = 2,4,6,8,10,12,14
P(A and B) = 2,4 (same balls in A and B)
5/15+7/15-2/5
10/15 or 2/3
