nuccioreggie
  • nuccioreggie
;elp
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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nuccioreggie
  • nuccioreggie
@Michele_Laino. Please explain
nuccioreggie
  • nuccioreggie
@DanJS. P)ease explain. Both parts please
DanJS
  • DanJS
To find the probability of hitting the black circle, you have to compare the area of the circle to the area of the white region

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DanJS
  • DanJS
They give you the diameter is 2, so the radius is 1, and the area of a circle is pi*r^2 = pi* 1 = pi
DanJS
  • DanJS
The area of the white region , is the area of the square take away the area of the circle 100 - pi
nuccioreggie
  • nuccioreggie
Ok can u explain both answers please
DanJS
  • DanJS
you get that part
DanJS
  • DanJS
The probability of hitting the black circle is the ratio of the two areas... \[\frac{ Area~circle }{ Area~white } = \frac{ \pi }{ 100-\pi } \approx 0.032\]
DanJS
  • DanJS
only about 3.2% chance
DanJS
  • DanJS
0 is no chance, and 1 is garunteed 100% , so it is very much closer to zero than 1
nuccioreggie
  • nuccioreggie
So thats the answer for part A
DanJS
  • DanJS
yea
DanJS
  • DanJS
part b is less work, since you know the chance of hitting the circle is 0.032, then the chance of hitting the white area is 1 - (chance of circle) = 1 - 0.032 = much closer to 1 for the white region
DanJS
  • DanJS
Because it is assumed he hits the board somewhere every throw , i guess, no missing
DanJS
  • DanJS
so (chance circle) + (Chance white) = 1
nuccioreggie
  • nuccioreggie
Can you explain Part A again please

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