Saturday
April 19, 2014

Homework Help: Stats

Posted by Jen on Monday, October 17, 2011 at 1:21am.

For a particular sample of 63 scores on a psychology exam, the following results were obtained.
First quartile = 57 Third quartile = 87 Standard deviation = 9 Range = 51
Mean = 72 Median = 72 Mode = 98 Midrange = 57
Answer each of the following:
I. What score was earned by more students than any other score? Why?
II. What was the highest score earned on the exam?
III. What was the lowest score earned on the exam?
IV. According to Chebyshev's Theorem, how many students scored between 45 and 99?
V. Assume that the distribution is normal. Based on the Empirical Rule, how many students scored between 45 and 99?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Statistics - For a population with a mean of =60 and standard deviation of &#...
stats - A random sample of n=16 scores is obtained from a population with a mean...
stats - 3. For a particular sample of 50 scores on a psychology exam, the ...
Stats - The distribution of lifetimes for a particular brand of lightbulbs has ...
stats - sample of n=64 scores is obtained from population with standard ...
Statistics - For a population with a mean of (mew) = 50 and a standard deviation...
stats - A final exam in Math 160 has a mean of 73 with standard deviation 7.73. ...
stats - sample was obtained from a population with unknown parameters. scores: 6...
statistics - For a particular population, a sample of n = 4 scores has an ...
(math) statistic - For a particular sample of 63 scores on a psychology exam, ...

Search
Members