Static senior 63-fin (20)
Statistics Mastery Quiz
Test your knowledge of statistics with our engaging quiz! This quiz covers a wide array of topics from fundamental concepts to statistical applications, designed for learners and enthusiasts alike.
Participate and challenge yourself with questions that include:
- Interquartile Range and Dispersion
- Probability and Sampling Techniques
- Normal Distribution and Standard Deviation
63.The interquartile range, IQR is
A. Q2-Q1
C. Q3-Q2
B. Q3-Q1
D. Q4-Q3
64. If an event E is certain, then the probability is
D. 1
A. >0
B. <1
C. between 0 and 1
65. A table in a report or thesis should include all the information below except as
D. Explanation of the key finding
A. Title
B. Row and column
C. Source of the data
66.Which of the following symbols stand for the mean of the sample?
a. µ
B. σ2
D. σ
C. X
67.The shape and position of the normal distribution curve depend on two parameters
B. The mean and the median
a. The mean and the standard deviation
C. The mean and the mode
D. The mean and the range
68. What is the other name for the ogive?
C. Cumulative frequency graph
A. Histogram
B. Frequency polygon
D. Pareto char
69.The number of traffic accident Cambodia during 2014 is
A. Discrete variable
B. Qualitative variable
C. Binary variable
D. Continuous variable
70. Nursing supervisors are selected using random numbers to determine annual salaries. The sampling technique is
B. Systemic
A. Random
C. Cluster
D. Stratified
71. The numerical value of the standard deviation can never be:
D. Negative
A. Zero
B. Larger than the variance
C. Smaller than the variance
72. Approximately what percentage of normally distributed data values will fail within 1 standard deviation above or below the mean?
B. 95%
A. 685
C. 99.7%
D. variable
73.Which is not a property of the standard normal distribution?
B. It's uniform
A. It's symmetric about the mean
C. It's bell-shaped
D. It's uni-modal
75. The descriptive measure of dispersion that is on the concept of a deviation about the mean is:
B. The standard deviation
A. The range
C. The interquartile range
D. The absolute value of the range
76. Except for rounding errors, relative frequencies should add up to what sum? a. 0
D. 100
C. 50
B. 1
77. When a distribution is positively skewed, the relationship of the mean, median, and mode from left to right will be:
A. Mean, median, mode
B. Mode, median, mean
C. Median, mode, mean
D. Mean, mode, media
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