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OpenStudy (jango_in_dtown):
HI... @geny55
OpenStudy (anonymous):
hi can you give me an example of a compound event?
OpenStudy (jango_in_dtown):
Yes... IN probablity?
OpenStudy (anonymous):
yes
OpenStudy (jango_in_dtown):
Let A denote the event of getting a mutiple of 3 when a die is thrown. Then it is a compound event since it consists of two events the first event is the event of getting 3 and the second event is the event of getting 6 when a die is thrown
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OpenStudy (anonymous):
can you give me another example?
OpenStudy (jango_in_dtown):
Yes.
OpenStudy (anonymous):
give me an easier example please :)
OpenStudy (jango_in_dtown):
rolling a die and tossing a coin is a combination of 2 simple events and therefore a compound event.
OpenStudy (anonymous):
ok one more :)
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OpenStudy (jango_in_dtown):
YOu want example different from rolling a die or tossing a coin?
OpenStudy (anonymous):
sure :)
OpenStudy (anonymous):
please huryy :)
OpenStudy (jango_in_dtown):
I am not getting any specific example. Sorry for that but the two examples I gave will also work
OpenStudy (anonymous):
ok can you help me with other questions please ? :)
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OpenStudy (jango_in_dtown):
okk
OpenStudy (anonymous):
OpenStudy (jango_in_dtown):
First you calculate the area of the circle and the square and tell me
OpenStudy (anonymous):
um idk :(
OpenStudy (jango_in_dtown):
What?? what is the area of a square of side a units?
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OpenStudy (anonymous):
9
OpenStudy (jango_in_dtown):
No//// |dw:1444763875421:dw|
OpenStudy (jango_in_dtown):
what is the area of the square in the picture?
OpenStudy (anonymous):
a
OpenStudy (jango_in_dtown):
its a^2
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OpenStudy (anonymous):
ok
OpenStudy (jango_in_dtown):
No its not ok... You should learn first
OpenStudy (jango_in_dtown):
You just note down what I am saying
OpenStudy (anonymous):
okso the area for the square is 9^2
OpenStudy (jango_in_dtown):
correct
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OpenStudy (jango_in_dtown):
and 9^2=81
OpenStudy (jango_in_dtown):
now you need to find the area of the circle
OpenStudy (anonymous):
3 ^2
OpenStudy (jango_in_dtown):
No its a circle , not a square.. Area of a circle =pi.r^2
OpenStudy (jango_in_dtown):
where r is the radius,,, Here the radius is 3/2=1.5
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OpenStudy (jango_in_dtown):
so now find the area of the circle
OpenStudy (anonymous):
so 3^1.5
OpenStudy (jango_in_dtown):
no area=pi. (1.5)^2
OpenStudy (jango_in_dtown):
probability=area of circle/area of square=pi,(1.5)^2/3^2
OpenStudy (anonymous):
3.5 ( 1.5 ) ^2
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OpenStudy (jango_in_dtown):
pi=3.14(correct upto 2 decimal places)
OpenStudy (anonymous):
oh ok so 3.14 (1.5) ^2
OpenStudy (jango_in_dtown):
so we need to calculate 3.14 (1.5)^2/9^2 which is nearly 0
OpenStudy (anonymous):
ok so the answerfor part A is?
OpenStudy (jango_in_dtown):
0
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OpenStudy (jango_in_dtown):
closer to 0
OpenStudy (anonymous):
and why is it closer to 0?
OpenStudy (jango_in_dtown):
after calculation you will get 0
OpenStudy (jango_in_dtown):
area of circle/area of square
OpenStudy (anonymous):
whats the area of circle/area of square?
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OpenStudy (jango_in_dtown):
probability of the black portion being hit= area of circle divided by the area of square