zarkam21
  • zarkam21
Help again! :]
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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zarkam21
  • zarkam21
1 Attachment
phi
  • phi
out of 10 orange and 4 blue, what is the chance of picking an orange?
zarkam21
  • zarkam21
10/4 right?

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More answers

phi
  • phi
you want the fraction (number that match) divided by total number (number that match means the number that are orange)
zarkam21
  • zarkam21
Which would calculate to 2.5
zarkam21
  • zarkam21
or 0.4
phi
  • phi
total number in the bag is not 4 (as a check, a "probability of 1" is the most you can get)
zarkam21
  • zarkam21
Because the total number of oranges is 10
zarkam21
  • zarkam21
0.4 is the correct answer =}
phi
  • phi
there are 10 orange and 4 blue. how much is that total?
zarkam21
  • zarkam21
14
phi
  • phi
so what is the chance of picking an orange ?
zarkam21
  • zarkam21
10/14
zarkam21
  • zarkam21
5/7
phi
  • phi
yes, or 5/7 we are not done. assuming we picked an orange one first, what is now in the bag ?
zarkam21
  • zarkam21
9 orange and 4 blue?
phi
  • phi
yes. and what is the chance of picking a blue one now ?
zarkam21
  • zarkam21
4/13 ?
phi
  • phi
yes. and the chances of picking orange, then a blue is found by multiplying the probabilities 5/7 * 4/13 they want a decimal , rounded to nearest 100th. Time for a calculator
zarkam21
  • zarkam21
0.22?
phi
  • phi
yes
zarkam21
  • zarkam21
Thank you so much! I really appreciate it! :]

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