stanleyzeng768 stanleyzeng768

07-07-2021
Mathematics

contestada

An urn has 21 balls that are identical except that 8 are white, 7 are red, and 6 are blue. What is the probability that all are white if 3 are selected randomly without replacement?

Respuesta :

madethisfortwitch1 madethisfortwitch1

07-07-2021

Answer:

.0421

about 4.21%

Step-by-step explanation:

[tex]\frac{{8\choose3}}{{21\choose3}}=\frac{56}{1330}=.042105263[/tex]

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