Test 1

Question 0

To calculate the Sum of squares, you ______ the mean deviation- scores and sum them:

Answer 0

Square

Question 1

The range indicates the

Answer 1

Distance between the highest and lowest scores

Question 2

A measurement of 25 inches would have a lower real limit of _____ inches.

Answer 2

24.5

Question 3

An outlier is

Answer 3

A case that shows a very extreme score relative to other cases

Question 4

The Variance is the:

Answer 4

A. Sums of squares divided by N And B. The average squared deviation from the mean. Answer- A & B

Question 5

A ____________ variable can theoretically include an infinite number of values between any two points.

Answer 5

Continuous

Question 6

____________ is defined as, how far scores deviate, on average, from the mean.

Answer 6

Standard Deviation

Question 7

A _________ sample accurately reflects the individuals, behaviors, and scores found in the population. To ensure we achieve this, researchers collect their participants through a _____ sample, which means each member of the population, has an equal chance of being included

Answer 7

1. Reflective 2. Random

Question 8

The symbol Σ means to __________________

Answer 8

Sigma; summation

Question 9

Proportions are another name of the ______ ______.

Answer 9

Relative frequencies

Question 10

Frequencies and the Measured of Central Tendencies are types of __________ statistics.

Answer 10

Descriptive

Question 11

The median is the same as the _______.

Answer 11

Midpoint

Question 12

We use sample statistics to generalize to the __________.

Answer 12

Population

Question 13

Dr. Qui is studying the influence gender has on the type of car a person drives. Both of these variables are considered a _______ scale of measurement.

Answer 13

Nominal

Question 14

If the variance of a distribution is 100 the SD is _______________.

Answer 14

10

Question 15

If the mean for a set scores is 75 and the standard deviation is 5, what can you say about a score of 65?

Answer 15

2 SD below mean

Question 16

The number of arithmetic problems correctly solved

Answer 16

Ratio

Question 17

Class standing (I.e one’s rank in the graduating class)

Answer 17

Ordinal

Question 18

Type of phobia

Answer 18

Nominal

Question 19

Temperature in (F)

Answer 19

Interval

Question 20

Annual income in dollars

Answer 20

Ratio

Question 21

Place in dog show

Answer 21

Ordinal

Question 22

Heart rate in beats per minute

Answer 22

Ratio

Question 23

What must you do to the Mean deviation scores when calculating the Sum of squares?

Answer 23

Square them

Question 24

What are two major disadvantages of the Mode?

Answer 24

1. Doesn't use all the scores 2. There can't be more than one mode. Not multimodal

Question 25

What percentage of scores in a normal distribution should be between 1 standard deviation above and 1 standard deviation below the mean?

Answer 25

68%

Question 26

How do the measures of Variability go beyond the measures of Central Tendency?

Answer 26

Overall distribution and looks at distance of scores

Question 27

What does the variability in your score tell you about the data?

Answer 27

Consistency of behaviors and accuracy of the mean.

Question 28

What are three measures of central tendency?

Answer 28

Mean, median, mode

Question 29

Explain where the three Measures of Central Tendency are located in the Normal distribution and why.

Answer 29

They are all located on the top of the distribution. Mode is at the top because that is the greatest frequency in Normal distribution. Median because that is the midpoint and mean because it is the average.

Question 30

What must you do to the Mean deviation scores when calculating the Sum of Squares?

Answer 30

Square them.

Question 31

Explain the difference between an interval scale of measurement and a ratio scale?

Answer 31

Interval can show the below or above average and Ratio scale does not have any negatives.

Question 32

What type of scale is being used for each of the following measurements? B. The number of arthritic problems being solved correctly

Answer 32

Ratio

Question 33

What type of scale is being used for each of the following measurements? C. Type of phobia

Answer 33

Nominal

Question 34

What type of scale is being used for each of the following measurements? D. Temperature in (F)

Answer 34

Interval

Question 35

What type of scale is being used for each of the following measurements? E. Annual income in dollars

Answer 35

Ratio

Question 36

What type of scale is being used for each of the following measurements? F. Place in a dog show

Answer 36

Ordinal

Question 37

What type of scale is being used for each of the following measurements? G. Heart rate in beats per minute

Answer 37

Ratio