anonymous
  • anonymous
Somebody please help me with probability
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
what is it
anonymous
  • anonymous
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anonymous
  • anonymous
all these are the ones i need help with
anonymous
  • anonymous
for the first pic.... 1. should be 7/20 which is 35% in otherwords D. You get the 20 from counting the lines from A to E which is 20. Then count the lines between BD which is 9-16 or 7. So you get 7/20. You basically do that for all of them...
anonymous
  • anonymous
for picture 38. Since a circle is 360 degrees and since you know each quarter should be 90 degrees. They give you 65 degrees so 65-90 is 25 and you have 4 shaded 25s so you take the 25 degrees and multiply it by 4 to get 100. Then just take 100/360 and you should get 27.8%
anonymous
  • anonymous
so in the first picture for number 2, would it be .27?
anonymous
  • anonymous
correct
anonymous
  • anonymous
how would i do picture 37, 39, and 41?
anonymous
  • anonymous
give me a few minutes.. i know for 37 its above 50% for sure..
andriod09
  • andriod09
On picture 41, all you have to do is imaging a dart board, just flip it to where the "Double points" is on the inside of the smallest circle. It's obviously answer choice C.
anonymous
  • anonymous
for 37 if you move all the shade from one circle to the other you will have one complete circle... so that leaves you with one circle with no shade.. so you simply find the area of that by using pi(radius)^2 your radius is 4. Your rectangle area is 8x4 which is 32. so take the 32-(unshaded circle area) = a number. then take that number and divide by 32 which gives you 64%
anonymous
  • anonymous
hold on its 60.7% i mean
anonymous
  • anonymous
so picture 39 would 10.68%
anonymous
  • anonymous
im not sure about 39 and 41.... sorry about that.
anonymous
  • anonymous
okay.. thank you for your help
anonymous
  • anonymous
your welcome
andriod09
  • andriod09
abigail, can u help me?
anonymous
  • anonymous
ya post a question up
andriod09
  • andriod09
here?
anonymous
  • anonymous
sure
andriod09
  • andriod09
Calvin caught five fish that had a mean of 19.3cm. Four of his fish measured: 17.5, 23, 15, and 23cm. Which of the following could be the length of the fifth fish that Calvin caught? A)15cm B)16cm C)17cm D)18cm
anonymous
  • anonymous
you basically just have to guess and check.. simply add those 4 numbers together and you can add any one of those (A-D) to them then just divide it by 5 because you have 5 total fish. Mean = average so your taking the average of the fish you caught. Just continue until you get 19.3cm. Your 5th fish should be 18cm to maintain the 19.3 cm average
andriod09
  • andriod09
i've got 16cm? What did i do wrong?
anonymous
  • anonymous
thats wrong.. 16+23+17.5+23+15 = 94.5/5 = 18.9cm which doesnt equal 19.3cm
andriod09
  • andriod09
one second.
andriod09
  • andriod09
ok... so 23+23+17.5+15+18=96.5/5=19.3!
andriod09
  • andriod09
can you help me on an open ended question?
anonymous
  • anonymous
correct =) i can try
andriod09
  • andriod09
Write a set of data with at least five values and the given measures: a) a mean of five b) a mode of five c)a median of five d)a range of five
andriod09
  • andriod09
im ur fan btw
andriod09
  • andriod09
im ur fan btw

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