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What is Statistics?
a) Relevant information
b) Involves scientific procedures and methods
c) decision making process
d) data are generated
Types of Statistics are:
a) marketing and accounting
b) descriptive and inferential statistic
c) primary and secondary
d) quantitative and qualitative
Inferential statistics is....
a) a techniques to improve the efficiency and effectiveness of the organization.
b) making generalization about population by analyzing the sample.
c) is a techniques to implement a strategic plan.
d) is a good representation of a population
Sample is different from population because...
a) a set of items selected from the population
b) a complete set
c) a measuring variable for every unit in the population
d) a study done before the actual framework
Example of quantitative data ..
a) color of eyes
b) numbers of chairs
c) types of glasses
d) marital status
a) second hand data
b) first hand information
c) data from other parties
d) annual report
A lecturer wants to know how students in the class did on their first semester final exam. He asks 15 students by calling their name from the class attendance list to state their CGPA result. He concludes from their report that the class did extremely well. What is the sample?
Students in the first semester
Staff and students at POLIMAS
Students of all semesters
15 students in the first semester
Which of the following statements are true?
I. All variable can be classified as quantitative or categorical variables.
II. Categorical variables can be continuous variable.
III. Quantitative variables can be discrete variables.
i and iii
i and ii
use data from a sample to answer questions about population.
allow you to generalize beyond the data at hand.
summarize and describe data.
Our data come from_____ , but we really care most about____.
theories; mathematical models
subjective methods; objective methods