
Statistics and Probability Final Exam
Quiz
•
Mathematics
•
11th Grade
•
Practice Problem
•
Hard
REGOR VELASCO
Used 2+ times
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50 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of statistical analysis in research?
To make random guesses about data
To organize and interpret data for decision-making
To manipulate data for biased conclusions
To avoid using numbers in problem-solving
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a dataset has a mean of 50 and a median of 30, what can be inferred about its distribution?
The data is symmetrically distributed
The data is skewed to the right
The data is skewed to the left
The data has no outliers
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A teacher wants to know the average test scores of students in two different sections. What statistical measure should she use?
Mode
Mean
Range
Quartile
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given the data set {12, 15, 20, 25, 25, 30, 35}, which measure is most affected by an outlier of 100?
Median
Mode
Mean
Range
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A researcher claims that a new teaching method improves students' performance. Which statistical tool is best to validate this claim?
Descriptive statistics
Inferential statistics
Frequency distribution
Bar graph
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If you were asked to conduct a study on students' sleep patterns and academic performance, which statistical method would you use and why?
Descriptive statistics to summarize sleep hours
Correlation analysis to find relationships between sleep and grades
Experimental study to manipulate students' sleep schedules
Mode calculation to find the most common sleep hours
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A survey found that students who use planners tend to submit assignments on time. What type of relationship does this indicate?
Causal
Correlational
Random
No relationship
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