STATISTICS
STATISTICS
Introduction
exercises
Main concepts
Population and sample
Variables
exercise
Statistical process
Descriptive Statistics
tables
frequency distribution table
tables with classes
exercises
graphs
pie chart
bar chart
histogram and frecuencies polygon
other types
exercises
parameters
measures of location
measures of dispersion
coefficient of variation
exercises
questions
Exam
Final exam
Vocabulary
Joke
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Final exam
Now it's your turn
1.- What are the two disciplines in the origin of Modern Statistics:
a) State Science and Statistics
b) Inferential and descriptive
c) State and Science
d) None of them
2.- The number, N, of elements of a sample is called:
a) Individual
b) Size
c) Height
d) Number
3.- The colour of eyes is a:
a) Quantitative variable
b) Discrete qualitative variable
c) Continuous quantitative variable
d) None of them
4.- The number of children is:
a) Qualitative variable
b) Discrete quantitative variable
c) Continuous quantiative variable
d) None of them
5.- Which of these steps belongs to the Statistical process:
a) Data collection
b) Data organization
c) Conclusions
d) All of them
6.- The number of classes we choose to group the values is approximately:
a) The half of N
b) The double of N
c) The square root of N
d) N + 1
7.- The kind of graph that is recommended for qualitative variables is:
a) Bar chart
b) Pie chart
c) Histogram
d) Temperature and rainfall chart
8.- The kind of parameters that give us information about which is the value in the "center" of the distribution data is:
a) Mode
b) Variance
c) Measures of dispersion
d) Measures of location
9.- Which of these parameters is a measure of dispersion:
a) Variance
b) Mean deviation
c) Standard deviation
d) All of them
10.- Which parameter is a normalized measure of dispersion
a) Coefficient of variation
b) Range
c) Mean deviation
d) Standard deviation
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