In a cookie jar, there are 17 oatmeal, 12 peanut butter cookies, and 9 sugar cookies.
a. What’s the probability of selecting a sugar cookie?
b. P(selecting a sugar or peanut butter cookie)
c. Probability of not selecting an oatmeal cookie.
Answers
Answer:
Given,
No. of oatmeal = 17
No. of peanut butter cookies = 12
No. of sugar cookies = 9
Total no = 38
a) No of selecting a sugar cookie = 9
Probability = no of sugar cookies ÷ total no
= 9 ÷ 38
Therefore probability of selecting a sugar cookie is 9/38
b) No of selecting a sugar or peanut butter cookies = 12 + 9 = 21
P ( selecting a sugar or peanut butter cookie )
Probability = no of sugar or peanut butter cookie ÷ total no
= 21 ÷ 38
Therefore probability of selecting a sugar or peanut butter cookie
is 21/38
c) No of not selecting an oatmeal cookie = 38 - 17 = 21
Probability = no of not selecting an oatmeal cookie ÷ total no
= 21 ÷ 38
Therefore probability of not selecting an oatmeal cookie is 21/38
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Answer:
Answer is 21:38 is the answer of your questions