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Answer:
1. 2.9 p(z) 8
2. 9.0 determine 4
3. 4.8 dicemal 20
Answer:
DETERMINE THE MEAN OR THE EXPECTED VALUE.
multiply each value of the random variable by its probability and add the products.
DETERMINE THE MEAN.
adding up the scores and dividing the total by the number of scores.
DETERMINE THE VARIANCE.
FIND THE SUM OF SQUARES.