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The percentiles, quartiles, and deciles for a continuous random variable can be approximated from a relative cumulative frequency ogive using the projective method. For instance, in we approximated the 50th percentile for A, the life span of a lithium battery, to be 850 hours.
(a) Approximate the first quartile for A, the cadmium level in the air, using the data of
(b) Approximate the fourth decile for A, the number of gallons of liquid product obtained per ton of coal fuel, using the data.
(c) Approximate the 50th percentile for X, the percentage ash content for a particular variety of moss using the data.
Players who earn more than 2 million dollars a year is found to be between .82 and .88. Given this information, the sample size that was used was approximately?
One water quality standard for water that is discharged into a particular type of stream or pond is that the average daily water temperature be at most 18°C.
a regional director responsible for business development in the state of pennsylvania is concerned about the number of
The Mount Washington Observatory (MWO) in New Hampshire claims to have the world's worst weather. Below are some data on the weather extremes recorded.
Determine the effectiveness of a new reading program for third grade children in my local school district who need help with reading skills
question a researcher is interested in differences in the use of sick days by younger and older adults working for a
What is the distribution of the time at which the last rider departs the car? Suppose the last rider departs the car at time t. What is the probability that all the other riders are home at that time?
Samples of n=4 items each are taken from a manufacturing process at regular intervals. A quality characteristic is measured, and x-bar and R values are calculated for each sample. After 25 samples, we have:
a company wants to check the consistency of electronic copies of signatures for consumer credit purchases. a sample of
a recent survey indicated that the average yearly salary of middle school teachers in wichita kansas is 45000 with a
Cards are drawn at random from an ordinary deck of 52 cards, one- by-one without replacement. What is the probability that no heart is drawn before the ace of spades is drawn?
Selecting a European Distribution Center Site for American International Automotive Industries
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