WorksheetsAdvance Statistics Diagnostic Test
Total questions: 40
Worksheet time: 20mins
Which of the following are the three most common measures of central location?
Mean, median and mode
Average, variance and standard deviation
Mode, sample mean, and sample variance
Mean, median, and average
If a value represents the 95th percentile, this means:
95% of all values are below this point
95% of all values are above this point
95% of the time you will observe this value
there is a 5% chance that this value is incorrect
none of the above
The mode is best described as:
the middle observation
the same as the average
the 50th percentile
the most frequently occurring value
The median can also be described as:
the middle observation when the data is arranged in ascending order
the second quartile
the 50th percentile
all of the above
none of the above
What is the median of the following set of scores?
18, 6, 12, 10, 14 ?
10
14
18
12
The most frequently occurring number in a set of values is called the ____.
Mean
Median
Mode
Range
As a general rule, the _______ is the best measure of central tendency because it is more
Mean
Median
Mode
Range
The ______ is the value you calculate when you want the arithmetic average.
Mean
Median
Mode
All of the above
Which of the following is NOT a common measure of central tendency?
Mode
Range
Median
Mean
What is the median of this set of numbers: 4, 6, 7, 9, 2000000?
7.5
6
7
4
50% of 3.5 is
0.175
1.75
10
15
A coin is tossed twice. Then the number of outcomes is
2
3
4
8
If there are 2 boys and 3 girls, what is the probability of selecting a boy?
2/5
3/5
4/5
5/5
The mean of 5, 6, 7 is
3
5
6
7
If n! = 1*2***n, compute 5!
6
24
120
360
The mean is a measure of central location.
True
False
In a negatively skewed distribution, the mean is larger than the median and the median is larger than the mode
True
False
In a positively skewed distribution, the mean is smaller than the median and the median is smaller than the mode.
True
False
The value of the standard deviation always exceeds that of the variance.
True
False
The median is one of the most frequently used measures of variability
True
False
A data sample has a mode 0f 140, a median of 130, and a mean of 120. The distribution of the data is positively skewed.
True
False
A student scores 85, 75, and 80 on three exams during the semester and 90 on the final exam. If the final is weighted double and the three others weighted equally, the student's final average would be 80.
True
False
The value of the mean times the number of observations equals the sum of all of the data values
True
False
There are four quartiles that divide the values in a data set into four equal parts
True
False
The number of scores on each side of the median must be equal.
True
False
The role of inferential statistics is to help understand the characteristics of the sample.
True
False
A line chart is also called a scatter plot.
True
False
Which of the following is a qualitative variable?
annual salary
age
weight
number of siblings
eye colour
GPA is a ___ variable.
Qualitative
Quantitative
Inferential statistics transforms information into knowledge.
True
False
A pie chart shows the number of observations in each class.
True
False
Bar charts and pie charts are commonly used to describe categorical data.
True
False
1. Which of the following is a nonterminating repeating decimal?
1/2
1/3
1/4
3/4
The median is ______.
The middle point
The highest number
The average
Affected by extreme scores
The number of scores on each side of the median must be equal.
True
False
Statistics is a set of qualitative data or facts.
singular
plural
general
fundamental
Scope of statistics in which the test scores of students are evaluated using statistical tools to determine if they pass or fail in an examination.
psychology
sociology
economics
education
Scope of statistics in which the scores of an individual in different kinds of test such as personality test, aptitude tests, intelligence test, etc. are analyzed and interpreted to understand a person better.
psychology
sociology
education
chemistry
Statistics is a branch of mathematics which deals with the systematic collection, tabulation, presentation, analysis, and interpretation of quantitative data.
fundamental
general
singular
plural
Statistics refers to those procedures and techniques used in the collection, tabulation, presentation, analysis, and interpretation of quantitative data.
singular
fundamental
general
plural
