Pre-Calculus

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1.Toss five fair coins and...

1.Toss five fair coins and let x equal the number of tails observed.

a. Identify the sample points associated with this experiment and assign a value of x to each sample point.

b. calculate p(x) for the values x=1 and x=2

c. construct a graph for p(x)

d. What is P(x=2 or x=5)?

2. Determine whether the random variable is discrete or continuous. In each case, state the possible values of the random variable. a. the number of points scored during a basket ball game. b. the amount of snowfall. a. Is the number of points scored during a basket ball game discrete or continuous?

A - the random variable is continuous. The possible values are 0,1,2,....

B - The random variable is discrete. The possible values are x≥0.

C - The random variable is continuous. The possible values are x≥0. D - the random variable is discrete. The possible values are 0,1,2,...

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