Chapter 5: Q.7 (page 346)
What is the area under f(x) if the function is a continuous probability density function?
The area under will be if the function is continuous probability density function
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Suppose that the value of a stock varies each day from with a uniform distribution.
a. Find the probability that the value of the stock is more than .
b. Find the probability that the value of the stock is between role="math" localid="1648188993020" .
c. Find the upper quartile - of all days the stock is above what value? Draw the graph.
d. Given that the stock is greater than , find the probability that the stock is more than .
Use the following information to answer the next seven exercises. A distribution is given as Find the median.
The data that follow are the square footage (in 1,000 feet squared) of 28 homes.
The sample mean = 2.50 and the sample standard deviation = 0.8302. The distribution can be written as .
What is the percentile of square footage for homes?
Use the following information to answer the next eleven exercises. The age of cars in the staff parking lot of a suburban college is uniformly distributed from six months (0.5 years) to 9.5 years.
Are the data discrete or continuous?
Suppose the time it takes a student to finish a quiz is uniformly distributed between six and 15 minutes, inclusive. Let the time, in minutes, it takes a student to finish a quiz. Then Find the probability that a randomly selected student needs at least eight minutes to complete the quiz. Then find the probability that a different student needs at least eight minutes to finish the quiz given that she has already taken more than seven minutes.
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