Homework Help: Elementary Statistics need help ASAP

Posted by Roxanne Singleton on Monday, November 2, 2009 at 9:53am.

Measures of Central Tendency
Be sure to show your work so that partial credit may be awarded.

4. An MM207 statistics class surveyed 24 students to find out how many hours they spent doing homework during the previous week.

10 11 10 8 10 10 15 12 10 8 13 11
11 13 10 11 13 10 11 12 11 13 12 8

a. Calculate the mean for these data. (Round to 2 decimal places)

b. Determine the median for these data

Elementary Statistics need help ASAP - Roxanne Singleton, Monday, November 2, 2009 at 9:54am
Measures of Variation

Be sure to show your work

5. A placement test has a mean of 65 and a standard deviation of 2. A histogram of the data shows that the distribution is bell-shaped. Using the Empirical Rule, what two values have about 95% of the curve between them?
Elementary Statistics need help ASAP - SraJMcGin, Monday, November 2, 2009 at 10:08am
Here are tutorials to help you:

http://www.google.com/search?q=Measures+of+Central+Tendency+tutorial&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

Sra
Elementary Statistics need help ASAP - Anonymous, Thursday, February 4, 2010 at 7:18pm
ggg
Elementary Statistics need help ASAP - cindy, Friday, March 5, 2010 at 1:50pm
A survey was conducted to measure the height of men. In the survey, respondents were grouped by age. In the 20 – 29 age groups, the heights were normally distributed, with a mean of 69.7 inches and a standard deviation of 3.0 inches. A study participant is randomly selected.
Find the probability that his height is less than 68 inches

Answer this Question

Related Questions

statistics/probability - give a brief note of the measures of central tendency ...
MB0040 - Give a brief note of measures of central tendency together with their ...
statistics - Assume that you are preparing a report on MM207 statistics students...
statistics health care - Why are measures of central tendency essential to ...
algebra - Describe the measures of central tendency and measures of dispersion ...
math - Emily,Zeke,Harry,& Brook each conducted surveys on the number of ...
Maths - If z=(x^n) f(x/y), where f is an arbitrary function, show that: x(...
Statistics - Data Information: Wage Income Statistics: Men VS Women Wage gap, by...
statistics - I dont understand how to answer this: relate the three measures of ...
Probability - PLEASE HELP - From industry statistics, a credit card company ...

For Further Reading

First Name:
School Subject:
Answer: