Mathematics, 14.12.2019 00:31 lerasteidl
Anew battery's voltage may be acceptable (a) or unacceptable (u). a certain flashlight requires two batteries, so batteries will be independently selected and tested until two acceptable ones have been found. suppose that 9096 of all batteries have acceptable voltages. let y denote the number of batteries that must be tested.
a. what is p(2), that is p (y= 2)?
b. what is p(3)? (hint: there are two different outcomes that result in y =3 )
c. to have y=5, what must be true of the fifth battery selected? list the four outcomes for which y: 5 and then determine
d. use the pattern in your answers for parts () to obtain a general formula for p(y).
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Anew battery's voltage may be acceptable (a) or unacceptable (u). a certain flashlight requires two...
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