Thursday
August 21, 2014

Homework Help: statistics

Posted by carly on Wednesday, November 21, 2012 at 2:52pm.

if a test has a mean of 150 and a standard deviation of 30, we know that:
a)50% of the respondents scored between 180 and 210
b)68% of the responents scored above 120
c)50% of the respondents scored between 120 and 210
d) 96% of the respondents scored between 90 and 210

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Statistics - If student A scored 42 on a test of reading and the test had a ...
Statistics - A statistics practitioner determined that the mean and standard ...
statistics - the correlation between two tests given to 100 students in the ...
psy230 - A business researcher has to decide which of three employees should be ...
Statistics- Math - One student scored 54 on a math test for which the mean score...
Math - On a standardized test, Phyllis scored 84, exactly one standard deviation...
statistics - What would a person's numerical score be if someone scored two ...
statistics - If someone scored two Standard Deviations above the Mean on a ...
statistics - if a test has a mean of 75, with a standard deviation of 11, what...
Statistics - A district mathematics test for all third graders had a normal ...

Search
Members