PSY 2310 - MODULE 5

Lakukan tugas rumah & ujian kamu dengan baik sekarang menggunakan Quizwiz!

X Y 5 4 6 4 8 3 9 6 7 3 9 2 ΣX =

144

X Y 5 4 6 4 8 3 9 6 7 3 9 2 ΣXY =

161

X Y 5 4 6 4 8 3 9 6 7 3 9 2 (ΣX)2 =

1936

Find the median of this frequency table of scores. X f 3 4 2 7 1 5 0 1

2

Find the mode of this set of scores. X f 3 4 2 7 1 5 0 1

2

Find the mean for the set of scores below. X f 4 3 3 7 2 6 1 2

2.61

X Y 5 4 6 4 8 3 9 6 7 3 9 2 ΣY =

22

Compute the median for this list of scores: 2, 2, 3, 3, 3, 5, 6.

3

Compute the mode for this list of scores: 2, 2, 3, 3, 3, 5, 6.

3

Find the median for the set of scores below. X f 4 3 3 7 2 6 1 2

3

Find the mode for the set of scores below. X f 4 3 3 7 2 6 1 2

3

Compute the mean for this list of scores: 2, 2, 3, 3, 3, 5, 6.

3.43

X Y 5 4 6 4 8 3 9 6 7 3 9 2 ΣX2 =

336

X Y 5 4 6 4 8 3 9 6 7 3 9 2 (ΣY)2 =

484

The median is also known as the __________.

50th percentile

Find the median of this list of scores: 5, 6, 4, 7, 8. [Hint: What is the first step to finding the median?]

6

Using Figure 2.7, what was the mean of the data?

73.00

X Y 5 4 6 4 8 3 9 6 7 3 9 2 ΣY2 =

90

When a distribution of scores is skewed, the median and the mean will be similar.

False

When entering data into SPSS, you can enter a frequency table of the data; you do not have to enter each score individually.

False

The sample mean is represented by __________.

M

What measure of central tendency is the value that has half of the scores above it and half the scores below it?

Median

What measure of central tendency should be used when a distribution of scores measured on the interval or ratio scale of measurement is skewed?

Median

When your data is ordinal, what is the best measure of central tendency to use?

Median

The mode is the best measure of central tendency for data measured at what level?

Nominal

What does the ΣX tell you to do?

Sum the scores (Xs).

What does N represent?

The number of scores.

When a distribution is symmetrical, the mean, the median, and the mode will have similar values.

True

When is the mean the best measure of the center of a distribution?

With interval/ratio data that does not have extreme scores.

A statistical formula is __________.

a helpful set of instructions indicating how to compute something

What is the median for this set of scores? 3, 3, 3, 4, 4, 5, 5, 5

b. 4

What measure of central tendency should be used with ordinal data?

b. Median

What measure of central tendency is used when data are measured on a nominal scale?

c. Mode

What measure of central tendency is obtained by adding all the scores and then dividing by the number of scores?

c. Mean

Which of the following is the best way to compute the mean for the following data? X f 3 4 2 7 1 5

m= 3(4)+ 2(7)+ 1(5)/16

What measure of central tendency should be used when the data are interval and there are extreme scores in the distribution?

median

Extreme scores are also called __________.

outliers

The population mean is represented by __________.

μ


Set pelajaran terkait

Biology Membranes and Cell Transport

View Set

how a bill becomes a law (congress test)

View Set

Ch. 30 & 31 Pharmacology/Medical Emergency - 104

View Set

The Causes and Consequences of the Six Day War

View Set

Excel 2016 Keyboard shortcuts for windows

View Set

CLA 030 final- easily confused words

View Set

Stress Testing and other risk management tools

View Set

Use the drop-down menus to complete the statements about message marking, categorizing, and flagging.

View Set

Med Surg: Chapter 53: Nursing Management: Patients With Burn Injury: PREPU

View Set