SOLUTION: Data were collected from a survey given to graduating college seniors on the number of times they had changed majors. From that data, a probability distribution was constructed. Us

Question 1210442: Data were collected from a survey given to graduating college seniors on the number of times they had changed majors. From that data, a probability distribution was constructed. Use the table below to answer the following questions, you may round your answers to three decimal places, if necessary.
x P(x)
0 0.234
1 0.263
2 0.219
3 0.165
4 0.067
5 0.038
6 0.011
7 0.002
8 0.001
a. What is the probability that a randomly selected student changed their major at least once?
b. What is the probability that a randomly selected student changed their major at most twice?
c. What is the probability that they changed majors more than three times?
Answer by Edwin McCravy(20081) (Show Source): You can put this solution on YOUR website!

Data were collected from a survey given to graduating college seniors on the
number of times they had changed majors. From that data, a probability
distribution was constructed. Use the table below to answer the following
questions, you may round your answers to three decimal places, if necessary.
---------------------------------------------
a. What is the probability that a randomly selected student changed their major
   at least once?


---------------------------------------------
b. What is the probability that a randomly selected student changed their major
   at most twice?

P(0)+P(1)+P(2) =  YOU ADD THEM UP!
----------------------------------------------
c. What is the probability that they changed majors more than three times?

P(4)+P(5)+P(6)+P(7)+P(8) = YOU ADD THEM UP!

Edwin

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