# Standard Deviation Help : Videos | Worksheets | Word Problems

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

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# Standard Deviation

Many students find standard deviation difficult. They feel overwhelmed with standard deviation homework, tests and projects. And it is not always easy to find standard deviation tutor who is both good and affordable. Now finding standard deviation help is easy. For your standard deviation homework, standard deviation tests, standard deviation projects, and standard deviation tutoring needs, TuLyn is a one-stop solution. You can master hundreds of math topics by using TuLyn.

At TuLyn, we have over 2000 math video tutorial clips including standard deviation videos, standard deviation practice word problems, standard deviation questions and answers, and standard deviation worksheets.

Our standard deviation videos replace text-based tutorials and give you better step-by-step explanations of standard deviation. Watch each video repeatedly until you understand how to approach standard deviation problems and how to solve them.
• Hundreds of video tutorials on standard deviation make it easy for you to better understand the concept.
• Hundreds of word problems on standard deviation give you all the practice you need.
• Hundreds of printable worksheets on standard deviation let you practice what you have learned by watching the video tutorials.
How to do better on standard deviation: TuLyn makes standard deviation easy.

# Top Standard Deviation 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 France, years of life expectancy (#3345)
In France, years of life expectancy are... ...ility of living between 78 and 88 years?
normal distribution, probability, standard deviation, statistics
• A pediatrician`s records show (#3038)
A pediatrician's records show that heigh... ...idence interval for population variance.
standard deviation, statistics, variance

# Homework Help Questions

• The average salary for first-year teachers is \$27,989. If the distribution is approximately normal with a standard deviation of \$3250, what is the probability that a randomly selected first-year teacher makes these salaries?
a. between \$20,000 and \$30,000 per year;
b. less than \$20,000 per year.
• 13, 15, 24, 44, 50