Posted by please help in panic modemary on Saturday, October 16, 2010 at 12:14am.
for a particular sample of 77 scores on a psychology exam the following results were obtained:
first quartile=44
third quartile= 71
standard deviation=6
range=45
mean= 64
median= 57
mode = 92
midrange=60
answer each of the following:
a) what score was earned by more students than any other scores? why?
b) what was the highest score?
c) what was the lowest score?
d)according to Chebysheve's theorem, how many students scored between 40 and 88?
e) assume that the distribution is normal. based on the empirical rule, how many students scored between 46 and 82?
* please show all calculations. i don't know where to begin. help, help, help. thank you.
mary

statistics  mary, can't figure out calculation, please show your calculations for all questions listed above ae, Saturday, October 16, 2010 at 4:28pm
for a particular sample of 77 scores on a psychology exam the following results were obtained:
first quartile=44
third quartile= 71
standard deviation=6
range=45
mean= 64
median= 57
mode = 92
midrange=60
answer each of the following:
a) what score was earned by more students than any other scores? why?
b) what was the highest score?
c) what was the lowest score?
d)according to Chebysheve's theorem, how many students scored between 40 and 88?
e) assume that the distribution is normal. based on the empirical rule, how many students scored between 46 and 82?
* please show all calculations.
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