Standard Normal Distribution Flashcards

1
Q

A continuous, symmetric, bell-shaped distribution of a variable.

A

Normal Distribution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Distribution is bell shaped.

A

Normal Distribution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The mean, median, and mode are equal and are located at the center of the distribution.

A

Normal Distribution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

It is unimodal and continuous.

A

Normal Distribution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

First derived by Abraham De Moivre (1667-1754), with contributions of the German mathematician, physicist and astronomer Carl Friedrich Gauss.

A

Normal Distribution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Normal Distribution also known as?

A

Gaussian Curve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

It is a graphical representation of the probability that the data collected distributes itself normally.

A

Gaussian curve or Normal Distribution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Asymmetrical or abnormal distribution of data in relation to the mean.

A

Data distribution skewness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

[3] types of Distribution

A
  1. Symmetrical Distribution
  2. Positively Skewed Distribution
  3. Negatively Skewed Distribution
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Data values are evenly distributed on both sides of the mean.

[types of distribution]

A

Symmetrical Distribution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The distribution that is unimodal and the mean, median, and mode are similar and at the distribution’s center.

[types of distribution]

A

Symmetrical Distribution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Most of the values in the data fall to the left of the mean and group at the lower end of the distribution; tail is to the right.

[types of distribution]

A

Positively Skewed Distribution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The mean is to the right of the median, and the mode is to the left of the median.

[types of distribution]

A

Positively Skewed Distribution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The mass of the data values falls to the right of the mean and group at the upper end of the distribution; tail is to the left.

[types of distribution]

A

Negatively Skewed Distribution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The mean is to the left of the median, and the mode is to the right of the median.

[types of distribution]

A

Negatively Skewed Distribution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Plays an important role in statistical interference.

A

Normal distribution

17
Q

A vertical line can be drawn in the middle of the distribution so that one side of the distribution is a mirror image of the other side.

A

Symmetrical Distribution

18
Q

[3] Types of Kurtosis

A
  1. Leptokurtic
  2. Mesokurtic
  3. Platykurtic
19
Q

Distributions where values clustered heavily or pile up in the center. There are tall distribution with narrow humps and long and high tails. Its kurtosis is positive. (kurtosis>0) and it denotes a high degree of peakedness.

[types of kurtosis]

A

Leptokurtic

20
Q

positive kurtosis, higher peak and longer tail.

[types of kurtosis]

A

Leptokurtic

21
Q

Are intermediate distribution which are neither too peaked nor too flat. The values are immediately distributed about the center. Its kurtosis is zero (kurtosis=0).

[types of kurtosis]

A

Mesokurtic

22
Q

Are flat distributions with values more evenly distributed about the center with broad humps and short tails. Its kurtosis is negative (kurtosis < 0) and it denotes a low degree of peakedness.

[types of kurtosis]

A

Platykurtic

23
Q

negative kurtosis, low peak. Flatter peak, shorter tail.

[types of kurtosis]

A

Platykurtic

24
Q

A bell-shaped theoretical distribution of population scores.

A

Normal curve

25
Q

Indicates how far a raw score is above or below the mean when measured in a standard deviation units. It locates the relative standing of a score by comparing it to the sample or population in which the score occurs.

A

Z-score

26
Q

A perfect normal curve that serves as a model of any approximately normal z-distributions.

A

Standard Distribution Curve