### Math And Standard Deviation, Standard Deviation – Behavioral Statistics

The key terms in these Statistics chapters include Population, Z – Score, Variable, Mean And Standard Deviation, Math, Sample, Standard Deviation, Population Standard Deviation, Mean, Dependent Variable, Distribution, Math And Standard Deviation – Behavioral Statistics. Final Exam is based on these chapters.

For the population with u = 80 and o = 6, what is the Z – SCORE corresponding to X = 68?

**– 2.00**

For a population with u = 40 and o = 8, what is the X value corresponding to z = 1.50?

**52**

A population has u = 50. What value of 0 would make X = 55 a central, representative score in the population?

**o = 10**

Which of the following Z- SCORE values represents the location farthest from the mean?

**z = -2.00**

A population of scores has u = 80. In this population, a score of X = 86 corresponds to z = +2.00. What is the population standard deviation?

**3**

For an experiment comparing two methods of teaching social skills training to autistic children, the independent variable is ___ and the dependent variable is ___.

**Teaching methods; the social skills that are learned**

A researcher uses an anonymous survey to investigate the television-viewing habits of American adolescents. The entire group of American adolescents is an example of a ___.

**Population**

In a population of scoress, X = 44 corresponds to z = +0.50 and X = 50 corresponds to z = +2.00. What are the values for the population mean and standard deviation?

**u = 42 and 0 = 4**

If an entire population with u = 60 and 0 = 8 is transformed into z = 8 is transformed into z – scores, then the distribution of z-scores will have a mean of ___ and a standard deviation of ____.

**0;1**

Last week, Sarah had exams in math and in Spanish. On the math exam, the mean was u = 30, with o = 5, and Sarah had a score of X = 45…

**Math**

A distribution with u = 55 and o = 6 // What value will be obtained for a score of X = 58 from the original distribution?

**X = 55**

How many individual scores are in the following distribution? f = 4, 3, 2, 1, // X = 1, 2, 3, 4, 5, 6 (count the f column = 10)

**n = 10**

WHAT IS THE SHAPE of the distribution for the following set of data? X = 5, 4, 3, 2, 1, // f = 1, 1, 2, 4, 5

**Positively skewed**

What is the VALUE of E(X-1)2 for the scores 1, 2, 1, 4?

**10**

For an exam with a mean f M = 74 and a standard deviation of s = 8, Mary has a score of X = 80, Bob’s score corresponds to z = +1.50, and Sue’s score

**Mary, Sue, Bob**

A sample of n = 20 scores has a mean of M = 45 and a standard deviation of s = 8. In this sample, what is the z-score corresponding to X = 57?

**z = 1.50**

For the population with u = 80 and o = 6, what is the Z – SCORE corresponding to X = 68?

**– 2.00**

For a population with u = 40 and o = 8, what is the X value corresponding to z = 1.50?

**52**

A population has u = 50. What value of 0 would make X = 55 a central, representative score in the population?

**o = 10**

Which of the following Z- SCORE values represents the location farthest from the mean?

**z = -2.00**

A population of scores has u = 80. In this population, a score of X = 86 corresponds to z = +2.00. What is the population standard deviation?

**3**

For an experiment comparing two methods of teaching social skills training to autistic children, the independent variable is ___ and the dependent variable is ___.

**Teaching methods; the social skills that are learned**

A score that is 2 points higher than the sample mean has a z-score of z = 0.50, and a score of X = 44 has a z – score of – 1.00. What is the sample mean?

**M = 48**

A population has u = 50. What value of 0 would make X = 55 a central, representative score in the population?

**o = 10**

Which of the following Z- SCORE values represents the location farthest from the mean?

**z = -2.00**

How many individual scores are in the following distribution? f = 4, 3, 2, 1, // X = 1, 2, 3, 4, 5, 6 (count the f column = 10)

**n = 10**

WHAT IS THE SHAPE of the distribution for the following set of data? X = 5, 4, 3, 2, 1, // f = 1, 1, 2, 4, 5

**Positively skewed**

What is the VALUE of E(X-1)2 for the scores 1, 2, 1, 4?

**10**

For an exam witha mean f M = 74 and a standard deviation of s = 8, Mary has a score of X = 80, Bob’s score corresponds to z = +1.50, and Sue’s score

**Mary, Sue, Bob**

For the population with u = 80 and o = 6, what is the Z – SCORE corresponding to X = 68?

**– 2.00**

For a population with u = 40 and o = 8, what is the X value corresponding to z = 1.50?

**52**

**o = 10**

Which of the following Z- SCORE values represents the location farthest from the mean?

**z = -2.00**

A population of scores has u = 80. In this population, a score of X = 86 corresponds to z = +2.00. What is the population standard deviation?

**3**

For an experiment comparing two methods of teaching social skills training to autistic children, the independent variable is ___ and the dependent variable is ___.

**Teaching methods; the social skills that are learned**

Math And Standard Deviation – Behavioral Statistics