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SCSTPRB
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1
The greater the linear relationship between the x and y, the more accurate is the prediction.
False
True
2
You want to know more about the experiences of disabled students at your university. Which sampling technique is to use?
voluntary
purposive
snowball
convenience
3
Regression models describe the relationship between variables by fitting a line to the observed data.
False
True
4
Which of the following is a presumption of status quo or no change?
alternative hypothesis
null hypothesis
5
Which of the following is NOT a normal distribution characteristic?
It is bell-shaped.
It is continuous.
It is asymptotic.
It is bimodal.
6
What is the process of collecting data with the intent of learning or discovering something?
evaluation
interpretation
experimentation
observation
7
Which of the following is NOT involved in the practice of statistics?
analyzing the data
creating the problem
designing the study
collecting of data
8
Describe the pearson-r of the diagram.
approx. 0
Between 0 and 1
Between 0 and –1
9
Which of the following follows a negative pearson-r?
Charle's Law
Gay-Lussac's Law
Boyle's Law
Avogadro's Law
10
What variable is altered in an experiment?
dependent
independent
controlled
11
What is a positional average of all values?
mean
mode
median
class
12
Which data represents exact figures you can "count"?
discrete
continuous
13
Which of the following DOES NOT affect the point of estimates?
sample size
combination of variance
confidence level
population variability
14
Which graph is used to compare the frequency of a category with that of another category?
radar chart
line graph
bar graph
pie graph
15
What do you call a specific, well-defined characteristic describing a population?
parameter
statistic
16
What is a complete set of people with a specialized set of characteristics?
sample
frequency
event
population
17
What is the maximum probability of committing an alpha error?
level of significance
critical value
confidence level
accepted value
18
Which of the following is a continuous variable?
Countries in the world
Life expectancy rate
Number of Chinese in Cavite
Preferred city of Filipinos to live
19
Which graph is used to display change over time as a series of data points connected by line segments on two axes?
radar chart
bar graph
pie graph
line graph
20
Alphabetically, you select a starting point: # 6. Every 10th person on the list is selected. What sampling technique?
cluster
simple random
systematic
strata
