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Questions and Answers
What is the most important characteristic of a unimodal distribution?
What is the most important characteristic of a unimodal distribution?
- It has no peaks
- It has a single distinct peak (correct)
- It is always skewed to the right
- It has multiple peaks
Which measure of central tendency is most affected by outliers in a dataset?
Which measure of central tendency is most affected by outliers in a dataset?
- Mode
- Median
- Mean (correct)
- Standard Deviation
What is the primary purpose of calculating the standard deviation of a dataset?
What is the primary purpose of calculating the standard deviation of a dataset?
- To determine the median of the dataset
- To determine the mode of the dataset
- To understand the amount of variation in the dataset (correct)
- To determine the number of peaks in the dataset
What is the term for a distribution that has multiple peaks?
What is the term for a distribution that has multiple peaks?
Which of the following types of skewness is most likely to occur in a distribution with a long tail on the right side?
Which of the following types of skewness is most likely to occur in a distribution with a long tail on the right side?
What is the primary cause of a skewed distribution?
What is the primary cause of a skewed distribution?
A dataset has a median of 50 and a mean of 70. What can be inferred about the distribution of the data?
A dataset has a median of 50 and a mean of 70. What can be inferred about the distribution of the data?
What is the purpose of calculating the standard deviation of a dataset?
What is the purpose of calculating the standard deviation of a dataset?
A histogram with two distinct peaks is an example of a __________ distribution.
A histogram with two distinct peaks is an example of a __________ distribution.
What is the mean of the following dataset: 12, 15, 18, 20, 22, 25, 28, 30?
What is the mean of the following dataset: 12, 15, 18, 20, 22, 25, 28, 30?
A histogram is created with the following dataset: 10, 15, 20, 20, 25, 30, 30, 35, 40. What can be inferred about the mode of the dataset?
A histogram is created with the following dataset: 10, 15, 20, 20, 25, 30, 30, 35, 40. What can be inferred about the mode of the dataset?
What is the standard deviation of the following dataset: 10, 12, 15, 18, 20, 22, 25?
What is the standard deviation of the following dataset: 10, 12, 15, 18, 20, 22, 25?
A histogram is created with the following dataset: 10, 20, 30, 40, 50, 60, 70, 80, 90. What can be inferred about the shape of the distribution?
A histogram is created with the following dataset: 10, 20, 30, 40, 50, 60, 70, 80, 90. What can be inferred about the shape of the distribution?
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