Download presentation

Presentation is loading. Please wait.

1
**Psy302 Quantitative Methods**

QUIZ CHAPTER FOUR

2
**1. Variability is a measure of:**

spread central tendency popularity the middle all of the above

3
**1. Variability is a measure of:**

spread central tendency popularity the middle all of the above

4
2. The ____ is the simplest way to describe how dispersed or spread out scores are. It involves the difference between the largest value and the smallest value. mean range mode standard deviation sum of squares

5
2. The ____ is the simplest way to describe how dispersed or spread out scores are. It involves the difference between the largest value and the smallest value. mean range mode standard deviation sum of squares

6
**3. The range is seldom used as a primary measure of variability in research because:**

it is difficult to compute it is highly skewed it measures central tendency it is based on two values all of the above

7
**3. The range is seldom used as a primary measure of variability in research because:**

it is difficult to compute it is highly skewed it measures central tendency it is based on two values all of the above

8
**4. The mean is not used as a primary measure of variability in research because:**

it is difficult to compute it is highly skewed it measures central tendency it is based on two values all of the above

9
**4. The mean is not used as a primary measure of variability in research because:**

it is difficult to compute it is highly skewed it measures central tendency it is based on two values all of the above

10
**5. Which of the following is an example of a distribution with NO variability?**

scores: 3, 5, 4, 4, 5, and 3 scores: 3, 3, 3, 3, 33, and 3 scores: 1, 2, 3, 4, 5, and 6 scores: 5, 5, 5, 5, 5, and 5

11
**5. Which of the following is an example of a distribution with NO variability?**

scores: 3, 5, 4, 4, 5, and 3 scores: 3, 3, 3, 3, 33, and 3 scores: 1, 2, 3, 4, 5, and 6 scores: 5, 5, 5, 5, 5, and 5

12
**6. The degrees of freedom for the sample variance:**

are equal to the sample size are equal to the sample size minus one can vary between – and + both B and C

13
**6. The degrees of freedom for the sample variance:**

are equal to the sample size are equal to the sample size minus one can vary between – and + both B and C

14
**7. Which of the following is true?**

the standard deviation measures central tendency the mean measures variability the standard deviation is always positive the standard deviation is used to describe qualitative data all of the above

15
**7. Which of the following is true?**

the standard deviation measures central tendency the mean measures variability the standard deviation is always positive the standard deviation is used to describe qualitative data all of the above

16
**8. Which of the following is a measure of spread or variability?**

mean ogive variance square root skewness

17
**8. Which of the following is a measure of spread or variability?**

mean ogive variance square root skewness

18
**9. Which shows more size variablity, the 6 boats or the 15 ducklings?**

the ducks they are the same all of the above

19
**9. Which shows more size variablity, the 6 boats or the 15 ducklings?**

the ducks they are the same all of the above

20
10. The empirical rule states that for any normally distributed set of data, 99.7% of values lie within ____ of the mean. 3 standard deviations 6 raw score units range sight all of the above

21
10. The empirical rule states that for any normally distributed set of data, 99.7% of values lie within ____ of the mean. 3 standard deviations 6 raw score units range sight all of the above

22
The End

Similar presentations

Presentation is loading. Please wait....

OK

Class Session #2 Numerically Summarizing Data

Class Session #2 Numerically Summarizing Data

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on economic reforms in india 1991 economic reforms Web development seminar ppt on 4g Ppt on bodybuilding diet Ppt on production theory in economics Keynote opening ppt on mac How to open password protected ppt on mac Ppt on antenatal care 1st grade ppt on main idea Best app for viewing ppt on ipad Raster and random scan display ppt online