WorksheetsStatistics Mean Median Mode Standard Deviation
Total questions: 15
Worksheet time: 15mins
According to the Empirical Rule, what percentage of data values lie within THREE standard deviation of the mean?
68%
95%
99.7%
100%
Kayla took a look at all of her English grades and saw that she received a 90 on majority of her assignments. Therefore, 90 is most like the __________ of her list of grades.
mode
range
variance
minimum value
The ____________ is equal to the standard deviation squared.
standard deviation
range
variance
maximum value
The following symbol represents what?
the sample mean
the population mean
the sample standard deviation
the population standard deviation
the sample size
The following symbol represents what?
the sample mean
the population mean
the sample standard deviation
the population standard deviation
the sample size
Which z-score is unusual?
-1.52
0.97
1.98
-2.31
If a data value has a negative z-score, what can we say about that data value?
the data value is below average
the data value is less than zero
the data value is unusual
the data value is not unusual
Jade subtracted the smallest value from the largest value in the data set. What statistic was she calculating?
standard deviation
range
variance
mean
If we use the mean to measure the typical value or center of the data, we would use the _________ to measure the variability.
IQR
Median
Mean
Standard Deviation
The median is the...
average of all data values
the most frequently occurring number
the difference between the biggest and smallest value
the middle value
The two measures of center we've study this unit are...
Interquartile Range
Mean Absolute Deviation
Mean
Median
Standard Deviation
If our data set is skewed to the right or left we would measure the center by calculating the...
Mode
Mean
Median
Range
The mean gets pulled away from the center of data or the typical value when the data is skewed to the right or left.
True
False
A typical value is found by using either the...
MAD
Mean
Standard Deviation
Median
If we use the median to measure the typical value or center of the data, we would use the _________ to measure the variability.
Mode
MAD
Standard Deviation
IQR or Interquartile Range
