3. Let X denote the number of bars of service on your cell phone whenever you are at an intersection with the following probabilities: a. b. P(X= x) What is the expected value of X? C. d. X 2.5 bars 1 bar 0.53 bars 0.0.5 bars 0 0.1 1 0.15 2 0.25 3 0.25 4 5 0.15 0.1
3. Let X denote the number of bars of service on your cell phone whenever you are at an intersection with the following probabilities: a. b. P(X= x) What is the expected value of X? C. d. X 2.5 bars 1 bar 0.53 bars 0.0.5 bars 0 0.1 1 0.15 2 0.25 3 0.25 4 5 0.15 0.1
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:3. Let X denote the number of bars of service on your cell phone whenever you are at an
intersection with the following probabilities:
a.
b.
P(X=x)
What is the expected value of X?
C.
d.
2.5 bars
1 bar
X
0.53 bars
0.0.5 bars
C.
0
0.1
a. A Poisson distribution
b. A binomial distribution
An exponential distribution
d. A geometric distribution
1
2
3
0.15 0.25 0.25
4. On average, the number of pumpkin spiced lattes ordered at a local coffee shop during the month
of October is 17.2 per hour. Consider the random variable X that represents the number of
pumpkin spiced lattes ordered per day in the month of October. The random variable X has
which of the following probability distributions?
4
5
0.15 0.1
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