# Mean Help : Videos | Worksheets | Word Problems

Many students find mean difficult. At TuLyn, we have hundreds of free mean video tutorials, printable mean worksheets, and mean word problems to help you better understand mean and get better grades.

### Probability and Statistics

in Probability and Statistics.

# Mean

The most common type of average is the arithmetic mean, often simply called the mean. The arithmetic mean of two numbers, such as 2 and 8, is obtained by finding a value A such that 2 + 8 = A + A. It is then simple to find that A = (2 + 8)/2 = 5. Switching the order of 2 and 8 to read 8 and 2 does not change the resulting value obtained for A. The mean 5 is not less than the minimum 2 nor greater than the maximum 8. If we increase the number of terms in the list for which we want an average, we get, for example, that the arithmetic mean of 2, 8, and 11 is found by solving for the value of A in the equation 2 + 8 + 11 = A + A + A. It is simple to find that A = (2 + 8 + 11)/3 = 7.

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# Finding The Mean Of A Data Set Video Clip

Finding The Mean Of A Data Set
Video Clip Length: 3 minutes 5 seconds
Video Clip Views: 13891

This tutorial will help you learn how to find the mean or average of a given data set.  You need to memorize the formula to find the average.  You must combine the given numbers in your data, then divide by the quantity of numbers in your set.  You will also learn how to show a fraction as division in order to get your mean.

mean, sets, statistics

# Top Mean Word Problems

• Find the IQ score separating the top (#1404)
Find the IQ score separating the top 85%... ...n of 100 and a standard deviation of 15.
mean, normal distribution, probability, standard deviation, statistics
• Test for high school students (#2909)
Test for high school students with a 3.5... ...ty of a student scoring less than 36 is?
mean, normal distribution, probability, standard deviation, statistics
• A normal distribution has a mean (#3515)
A normal distribution has a mean of 80 a... ...ue above which 80% of values will occur?
mean, normal distribution, standard deviation, statistics
• In a class of 25 students (#2972)
In a class of 25 students, the grades we... ...8? How many students scored above an 88?
mean, normal distribution, standard deviation, statistics
• With a height of 69 inches, Alexander was the shortest (#3097)
With a height of 69 inches, Alexander wa... ...s that [the difference found in part a]?
mean, standard deviation, statistics

# Homework Help Questions

• The mean of a normal distribution is 100 and the standard deviation is 15. Find the value of separating the top 85% from the others.

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