Question

a fish is randomly drawn from a barrel with 10 green fish, 9 blue fish, and 16 red fish. event a: blue event b: red 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 fish

$10 + 9+16=35$

Step2: Calculate P(A)

$P(A)=\frac{9}{35}$

Step3: Calculate P(B)

$P(B)=\frac{16}{35}$

Step4: Calculate P(A or B)

$P(A\ or\ B)=P(A)+P(B)=\frac{9}{35}+\frac{16}{35}=\frac{9 + 16}{35}=\frac{25}{35}=\frac{5}{7}\approx0.71$

Answer:

$0.71$