160 Answered Questions for the topic Standard Deviation
Using the empirical rule
Americans spend an average of 5 hours per day online. If the standard deviation is 37 minutes, find the range in which at least 93.76% of the data will lie.
Suppose an exam had an average (mean) score of 55%
The mean high temperature for a town in Saskatchewan is -15 degrees and the standard deviation is 6 degrees.
Given the following frequency distribution, find the mean, median, mode and standard deviation. draw the histogram.
The mean is 93.8 and the standard deviation is 6.2. Find the z score for the data item 79
what is the standard deviation of 2.3000, 1.7333, 1.6000, 2.6667 ?
Compute the Mean & Standard Deviation from percentile values of a distribution
Help finding the sample size! Statistics
Finding a % with Mean and Standard Deviation
A student scores 61 on a test. The class average is 81, with a standard deviation of 10 points. What percentage of the class scored below this student?
Need urgent helop on Algebra questions!
What are the cutoffs for B?
Who is the more consistent bowler? Standard Deviation
HELP!! std. dev, mode and mean.
what percentage of scores are between 56 & 77
a set consists of 96 elements .The range of the set is 10 and mean is 12.6 , what is standard deviation of the set ?
what is the cut off height for the shortest 20% of babies with an average of 65cm and standard deviation of 10cm
Finding the percentage from the normally distributed mean and standard deviation? Help please :)
a population has a mean of 45 and a standard deviation of 5. find the raw scores of the following z-scores: z-score=1.3