Phil has 5 chocolate chip cookies, 6 peanut butter cookies, and 3 sugar cookies in a jar. He randomly selects two cookies from the jar,?

👨🏻‍🏫 學術台數學

[匿名]

2015-10-25 2:58 pm

更新1:

one after the other, without putting them back. What is the probability that Phil selects the two sugar cookies?

更新2:

A. 1/7 B. 3/14 C. 3/91 D. 3/98

回答 (2)

cidyah

2015-10-25 3:07 pm

P(sugar, sugar) = (3/14)(2/13) = 6 / 182 = 3/91

👍 0 👎 0

[匿名]

2015-10-25 3:01 pm

easy total cookies is 14, so first one will (3/14) 2nd will be (2/13) the result willbe (3x2/14x13)=6/182 ->3/91 C option =D

👍 0 👎 0