There are 4 red slices out of 9 total. So there are 9-4 = 5 slices that are not red. The odds in favor of landing on red is 4:5
We basically write the number of ways to get what we want (4), followed by a colon, then the second number is the number of ways to get what we don't want (anything but red; 5 ways)
So that's why the answer is 4:5
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Side Note -- If we want the odds against, we simply flip the ratio. The odds against would be 5:4 because there are 5 ways to lose and 4 ways to win. This is assuming that landing on red means you win.
Answer:
x = 5 - a
Step-by-step explanation:
Given
6x + a = 5(x + 1) ← distribute
6x + a = 5x + 5 ( subtract 5x from both sides )
x + a = 5 ( subtract a from both sides )
x = 5 - a
Solution
Step 1
Step2
The probability that at least one will have a defect
= 1 - the probability that noon will have a defect
Step 3
Use the binomial distribution
X=36 this is because you first have to multiply both sides by nine to get rid of the fraction, then you divide both sides by eight to get the x alone
