Chapter 5: Q.5.33 (page 348)
Use the following information to answer the next eight exercises. A distribution is given as.
Find the percentile
Short Answer
The value ofpercentile is.
Chapter 5: Q.5.33 (page 348)
Use the following information to answer the next eight exercises. A distribution is given as.
Find the percentile
The value ofpercentile is.
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Get started for freeWhich type of distribution does the graph illustrate?
Use the following information to answer the next seven exercises. A distribution is given as . What is the cumulative distribution function?
The age of a first grader on September 1 at Garden Elementary School is uniformly distributed from to years.
We randomly select one first grader from the class.
a. Define the random variable. = _________
b. _________
c. Graph the probability distribution.
d. = _________
e.= _________
f. = _________
g. Find the probability that she is over years old.
h. Find the probability that she is between four and six years old.
i. Find the percentile for the age of first graders on September 1 at Garden Elementary School.
What does the shaded area represent? P(___< x < ___)
Suppose that the length of long distance phone calls, measured in minutes, is known to have an exponential distribution with the average length of a call equal to eight minutes.
a. Define the random variable.= ________________.
b. Is continuous or discrete?
c. ________
d. ________
e.________
f. Draw a graph of the probability distribution. Label the axes.
g. Find the probability that a phone call lasts less than nine minutes.
h. Find the probability that a phone call lasts more than nine minutes.
i. Find the probability that a phone call lasts between seven and nine minutes.
j. If phone calls are made one after another, on average, what would you expect the total to be? Why?
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