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SAT® Subject Test in Math 1 & 2

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Moderate

Multiple Events

SATSTM-XQEXDW

Bill and Sue are planning to eventually have $3$ children. They really want their children to each be born on a Saturday or Sunday.

What is the probability that all three children are born either on a Saturday or Sunday?

A

$\cfrac{1}{21}$

B

$\cfrac{1}{343}$

C

$\cfrac{3}{343}$

D

$\cfrac{6}{343}$

E

$\cfrac{8}{343}$