Question

a cookie is randomly drawn from a box with 4 small cookies, 13 medium cookies, and 8 large cookies. event a: small event b: large p(a or b) = ? hint: p(a or b) = p(a) + p(b) round your answer to the nearest hundredth.

Explanation:

Step1: Calculate total number of cookies

$4 + 13+8=25$

Step2: Calculate P(A)

$P(A)=\frac{4}{25}= 0.16$

Step3: Calculate P(B)

$P(B)=\frac{8}{25}=0.32$

Step4: Calculate P(A or B)

$P(A\ or\ B)=P(A)+P(B)=0.16 + 0.32=0.52$

Answer:

0.52