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Mean / Standard Deviation
Message posted by Marquis (via 152.163.197.208) on June 28, 2001 at 12:37 AM (ET)
Males Females
6 5
8 7
5 8
3 4
7 6
6 4
9 7
What is the Mean / Standard Deviation for each group? Which group has the greater variability?
READERS RESPOND:
(In chronological order. Most recent at the bottom.)
Re: Mean / Standard Deviation
Message posted by JG (via 128.8.22.33) on June 28, 2001 at 3:49 AM (ET)
mean pop. SD sample SD M 6.3 1.8 2.0
F 5.9 1.5 1.6
Re: Mean / Standard Deviation
Message posted by Timmy (via 64.12.104.48) on July 6, 2001 at 3:19 PM (ET)
Given a normal distribution of cups of coffee consumed per week, in which the mean is 6.5 and the standard deviation is 3.1, determine:a)the percent of respondents who drink six or more cups per week and the probability of
b)locating a respondent who drinks more than a dozen cups aweek
c) locating a respondent who drinks less than eight cups per week
d)locating two respondents who drink between two and five cups per week, and
e) locating a respondent who drinks one cup or less or fifteen or more cups per weekPLEASE HEEELP!
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