120 Answered Questions for the topic Mean

05/05/15

Given the following frequency distribution, find the mean, median, mode and standard deviation. draw the histogram.
Score          100     95     90     82 Frequency     1        2       3       4
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Mean

04/14/15

Mean Question
The average of n numbers x^1, x^2, x^3, ........, x^n is M. If x^n is replaced by x', then new averageis______
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03/31/15

Compute the Mean & Standard Deviation from percentile values of a distribution
I have been given values for 10%, 50% and 90% of a distribution. From these numbers, how can I compute the mean and standard deviation?   I'll give an example....Temperature distribution 10th... more
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03/14/15

Finding a % with Mean and Standard Deviation
Manbir is a local fisherwoman who has been recording the mean weight of the fish that she catches. She discovered that the distribution of weight is normal with a mean of 2.9kg and a standard... more
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Mean

02/11/15

If temperature increases 18 degrees in 6 minutes what is the mean change in temperature?
If temperature increases EIGHTEEN DEGREES in SIX MINUTES what is the MEAN CHANGE in TEMPERATURE?
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Mean

12/09/14

Please assist me with this question.
Find the mean of the following numbers:24,65,25,24, and 28. Then eliminate the largest value and find the mean of the remaining numbers
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Mean

11/17/14

john has test scores of 85, 90 and 75. What score does he need to get on the next test in order to have a mean score of 85?
John has test scores of 85, 90, and 75. He needs a mean score of 85 inorder to get a B. What score must he makeon the next test in order to get a B (85) in the class?
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Mean

11/05/14

How to calculate mean with blank items
I have 20 items that people asked to pick their top 10 and rate them from 1-10 with 1 being the best.  We want to calculate which item ended up being #1 for the group, then #2, etc.  However, since... more
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10/19/14

HELP!! std. dev, mode and mean.
There are 5 participants in a study. All I have are some statistics to find out the individual numbers for the 5 people. The mean is 8, the standard deviation is 4, the mode is 5 and the range is... more
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09/15/14

The mean of the score are 8, 4, X, 12 and 27 is 12. What is the missing score?
The mean of the score are 8, 4, X, 12 and 27 is 12. What is the missing score?
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Mean Slope Average

06/20/14

Find the average of mean slope of the function and the c that exists
Consider the function f(x)=2√(x)+1 on the interval [2,7]. Find the average of mean slope of the function on this interval. (Provide specific answers) By the mean value theorem, we know there... more
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06/18/14

Find the average or mean slope of the function on this interval.
Consider the function f(x)=3x3-5x on the interval [-5,5]. Find the average or mean slope of the function on this interval.  By the mean value theorem, we know there exists at least one c in the... more
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06/15/14

Find the average or mean slope of the function on this interval
Consider the function f(x)=6-7x2 on the interval [-4,5].  Find the average or mean slope of the function on this interval (f(5)-f(-4))/(5-(-4))= By the Mean Value Theorem, we know there exists a... more
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06/15/14

Find the average or mean slope of the function on this interval.
Consider the function f(x)=2√(x)+1 on the interval [2,7]. Find the average or mean slope of the function on this interval. By the mean value theorem, we know there exists a c in the open interval... more
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06/15/14

Find the average or mean slope of the function on this interval.
Consider the function f(x)=1/x on the interval [3,9]. Find the average or mean slope of the function on this interval.  By the mean value theorem, we know there exists a c in the open interval... more
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01/26/14

standard deviation
IQ test scores are normally distributed with a mean of 100 and a standard deviation of 15. Find the x-score that corresponds to a z-score of 1.96.
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Mean Math Range

05/26/13

Impact on range and mean by increasing salaries
At a particular company, every employee receives a 4% cost-of-living increase to their salary. What impact does this cost-of-living increase have on the mean and on the range of employee salaries... more
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03/20/13

Determine the area under a normal distribution graph with a mean of 55 and a standard deviation of 7?
a) to the right of x = 58 b) to the left of x = 24 Please show graphs if you can!!
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03/20/13

How to find a percentage from standard deviation and mean?
Tommy Wait’s times between pitches is normally distributed with a mean of 36 sec. and a standard deviation of 2.5 sec. What percentage of his times between his pitches are 30 and 34 seconds? Please... more
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Mean Mode Median

01/13/13

What are the oringanal numbers if the mode is 8 the mean is 10 and the median is 10
Thequestion is in a 6th grade text book and says use the central tendency  
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