Measures of central location and Measures of Dispersion
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| It represents the value of where data observations tend to cluster; represents entire mass of data by a single value. | Measures of Central Location.
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| Which is a very sensitive measure that can only be used on interval or ratio data? | Mean
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| If two sets of data have the same median, then the data must be the same. True or False? | False
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| It is the measure of dispersion that depends only on the two most extreme values of data. | Range
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| It is a measure that only considers order and is unaffected by extreme scores, also called the middle score. | Median
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| It can be used for any levels of measurements; measures the most frequently occurring value in a data set. | Mode
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| It describes how spread the data are and measures the variation of data values among themselves. | Measures of dispersion
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| It a measure of dispersion that takes the difference between the greatest data and the least data value. | Range
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| It makes use individual amount that each data values deviate from the mean. | Standard deviation
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| When the data values have equal frequency the mode... | does not exist
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| When the data sets have two most frequently occurring values, it is called? | Bimodal
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| Class A has the mean of is 51.38, SD: 4.03 and sample variance of 16.24.. Whereas class B has a mean of 53, SD: 8.64, and sample variance of 74.65. Which class produced more consistent results? | Class A
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| If the standard deviation of a mean is low it means that the mean is? | Reliable
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| Data sets with three or more frequent data values is called? | Multimodal
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| If the standard deviation is closest to zero there is a? | lower data variability and a more reliable mean.
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| If the standard deviation is the variation in the data and the mean is? | Data variation is high; Mean is less accurate.
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| What is the mean of this data set: 48, 51, 50, 47, 51, 49, 58, 57? | 51.38
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| What is the mean of this data 44, 54, 58, 61, 66, 40, 51, 50? | 53
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| Calculate the range of this set 48, 51, 50, 47, 51, 49, 58, 57. | 11
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| Calculate the range pf this set 44, 54, 58, 61, 66, 40, 51, 50. | 26
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| It is a measure of dispersion that is the square of standard deviation. What is it called? | Variance
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| Calculate the standard deviation of this sample 48, 51, 50, 47, 51, 49, 58, 57. | 4.03
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| Calculate the standard deviation of this population 1, 2, 5, 7, 8. | 7.44
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