A psychological test has scores that range from 0 to 10 (whole numbers only). The stable range is given by scores ranging from 3-8 (inclusive); the group scoring less than 3 are labeled as Low Risk, while those with a score greater than 8 are labeled as High Risk. In a certain population of interest, the probability that a person is psychologically stable is 86%, and the probability that a person is from the High Risk group is 4%. A random sample of 10 people is taken from this population. What is the expected number of people NOT from the stable group?   Question 9 options:   0.14   14.0   1.40   8.60   None of the above

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A psychological test has scores that range from 0 to 10 (whole numbers only). The stable range is given by scores ranging from 3-8 (inclusive); the group scoring less than 3 are labeled as Low Risk, while those with a score greater than 8 are labeled as High Risk. In a certain population of interest, the probability that a person is psychologically stable is 86%, and the probability that a person is from the High Risk group is 4%. A random sample of 10 people is taken from this population.

What is the expected number of people NOT from the stable group?

 

Question 9 options:

 

0.14

 

14.0

 

1.40

 

8.60

 

None of the above

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