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Question: Suppose you are working with a data set that is normally distributed, with a mean of 200 and a standard deviation of 47. Determine the value of x from the following information.
a. 60% of the values are greater than x.
b. x is less than 17% of the values.
c. 22% of the values are less than x.
d. x is greater than 55% of the values.
For each of the following characteristics of an individual, indicate whether the variable is categorical or quantitative.- Length of forearm from elbow to wrist (in centimeters).- Whether or not the person has ever been the victim of a crime.
Then comment on the effectiveness of the presentation: Were the frequency distributions used effectively to report the results? Why or why not?
let a b and c be independent random variables uniformly distributed over 07 08 and 03 respectively. what is the
Construct a 95% con?dence interval for the population average.
The problem related to Basic Statistics and discuss about reliability vs validity in the area of research and it discusses the importance of these two
The weekly dollar demand and supply functions for tents, t, are given by the following respective formulas:
Suppose we want to test the hypothesis that a given population distribu- tion is exponential with mean 100; that is, F(x) = 1 - e-x/100.
Scrabble. Using a computer to play many simulated games of Scrabble, researcher Charles Robinove found that the letter "A" occurred in 54% of the hands.
Let x be the random variable that denotes the net amount a playr wins by playing this lottery. Write the probablity distribution of x. Determine the mean and standard deviation of x. How will you interpret the values of the mean and standard devia..
Do cars get better gas mileage with premium instead of regular unleaded gasoline? While it might be possible to test some engines in a laboratory setting, we'd rather use real cars and real drivers in real day-to-day driving, so we get 20 voluntee..
list the steps you would follow to determine the reliability of the exam. about 100 students will take this exam. the
A) Please develop the Expected frequencies table based on the above information.
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