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Mathematics 13 Online
OpenStudy (anonymous):

The quarterback on a football team completes 60% of his passes. He attempts three passes (assumed to be independent) in a given quarter. a. What is the probability that he will complete all three? b. What is the probability that he will complete at less than 3 passes?

OpenStudy (anonymous):

all three means \(.6\times .6\times .6=.6^3\)

OpenStudy (anonymous):

i don't understand that

OpenStudy (anonymous):

less than 3 means not three, once you have computed \[.6^3\] the probability of less than 3 is \[1-.6^3\]

OpenStudy (anonymous):

.216

OpenStudy (anonymous):

all three: makes the first \(60\%=.6\) chance of that AND makes the second, another \(.6\) AND makes the third \(.6\) again since all three have to happen, and since the events are assumed to be independent, you multiply them to get your probability \[.6^3\]

OpenStudy (anonymous):

@satellite73 gots it :)

OpenStudy (anonymous):

So .6 3 power is the answer

OpenStudy (anonymous):

for the first one, yes \[.6^3\]

OpenStudy (anonymous):

mhm :)

OpenStudy (anonymous):

How do you make to the third power on the keyboard Victoria

OpenStudy (anonymous):

So what is the second answer

OpenStudy (wolf1728):

to make the cube symbol hold down the ALT key then type in ³ and there it is

OpenStudy (anonymous):

or just X^3 It all means the same

OpenStudy (anonymous):

I am sorry I have a macbook pro. I don't have that button my computer.

OpenStudy (wolf1728):

so .6³ = .216

OpenStudy (wolf1728):

Yeah you're right. Can you copy and paste the ³

OpenStudy (anonymous):

just .6^3 if you cant. we all get it

OpenStudy (anonymous):

alright

OpenStudy (wolf1728):

As far as part b - is that asking if the quarterback will complete less than 3 passes?

OpenStudy (anonymous):

That's what I see.

OpenStudy (wolf1728):

Then I guess p = 1 -.216 = 0.784

OpenStudy (anonymous):

Thanks guys and girls

OpenStudy (wolf1728):

u r welcome

OpenStudy (anonymous):

Mhm no problem :)

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