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IrinaVladis [17]
3 years ago
8

Assume red and green are equally likely occurrences. Using Pascal’s triangle, what is the probability that you will get one gree

n light in a row of five lights? a. 3/16 b. 1/32 c. 5/16 d. 5/32
Mathematics
1 answer:
Serggg [28]3 years ago
5 0

Answer:

5/32.

Step-by-step explanation:

                     1

                  1      1

              1       2      1

           1       3      3       1

      1       4       6      4       1

  1      5      10      10     5       1

As there are 5 lights we need the last row in the above Pascals triangle.

And  there is 1 red and 4 green  ( = 5) and it can happen in 5 ways, so that gives us the second term in the last row . The total  in that last row = 1+5+10+10+5+1 = 32.

so the probability is 5/32.

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