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WorksheetsUngrouped Data Set Review (Calculator)
Total questions: 20
Worksheet time: 32mins
TRUE OR FALSE: When finding the Mean, Standard Deviation, Median, Lowest #, and Highest # on the Calculator you...
1. Hit STAT then ENTER
2. Enter all data values in L1
3. Hit STAT again
4. Arrow over to CALC
5. Choose #1:1 Var Stats, hit ENTER
TRUE
FALSE
TRUE OR FALSE:
YOU ONLY ROUND THE MEAN AND STANDARD DEVIATION TO THE NEAREST 10th.
TRUE
FALSE
1. When finding the Standard Deviation BY HAND you SQUARE ROOT the VARIANCE.
TRUE
FALSE
1. When finding the VARIANCE using the CALCULATOR you SQUARE the STANDARD DEVIATION.
TRUE
FALSE
Set 1: {10, 19, 38, 50, 51}
Set 2: {5, 21, 26, 39, 51}
Set 3: {9, 38, 50, 50, 51}
Set 4: {5, 28, 28, 28, 51}
Which data set has the largest standard deviation?
What is the Sample Mean for the data given:
5, 10, 7, 12, 0, 20, 15, 22, 8, 2
Round answer to nearest 10th
10.1
7.3
6.9
9.0
What is the sample variance for the data given:
5, 10, 7, 12, 0, 20, 15, 22, 8, 2
Answers below are rounded to the nearest hundredth.
47.47
102.01
52.77
81
What is the sample standard deviation for the data given:
5, 10, 7, 12, 0, 20, 15, 22, 8, 2
Round answer to nearest 10th
10.1
7.3
6.9
52.8
What is the population variance for the data given:
5, 10, 7, 12, 0, 20, 15, 22, 8, 2
Answers below are rounded to the nearest hundredth.
52.77
7.26
47.49
6.89
What is the Population standard deviation for the data given:
5, 10, 7, 12, 0, 20, 15, 22, 8, 2
Round answer to nearest 10th
10.1
7.3
6.9
52.8
What is the population standard deviation for the data given:
{12, 13, 29, 18, 61, 35, 21}
251.86
15.9
27
189
The term "snowstorms of note" applies to all snowfalls over 6 inches. The snowfall amounts for
snowstorms of note in Utica, New York, over a four-year period are as follows: 7.1, 9.2, 8.0, 6.1,
14.4, 8.5, 6.1, 6.8, 7.7, 21.5, 6.7, 9.0, 8.4, 7.0, 11.5, 14.1, 9.5, 8.6
What is the mean and population standard deviation for these data, to the tenth?
mean = 9.46; standard deviation = 3.85
mean = 9.5; standard deviation = 3.9
mean = 9.45; standard deviation = 3.74
mean = 9.45; standard deviation = 3.85
Given a variance of 64, what is the standard deviation?
8
4096
0
6.8
1. Deviation is the difference between the data entry and the standard deviation
TRUE
FALSE
TRUE OR FALSE:
THE ONLY COLUMN THAT CAN HAVE A NEGATIVE NUMBER IN A UNGROUPED FREQUENCY DISTRIBUTION IS THE x−μ column.
TRUE
FALSE
The term "snowstorms of note" applies to all snowfalls over 6 inches. The snowfall amounts for
snowstorms of note in Utica, New York, over four years are as follows: 7.1, 9.2, 8.0, 6.1,
14.4, 8.5, 6.1, 6.8, 7.7, 21.5, 6.7, 9.0, 8.4, 7.0, 11.5, 14.1, 9.5, 8.6
What is the mean and population standard deviation for these data, to the tenth?
mean = 9.46; standard deviation = 3.85
mean = 9.5; standard deviation = 3.9
mean = 9.45; standard deviation = 3.74
mean = 9.45; standard deviation = 3.85
What is the Population Variance for the data given:
5, 10, 7, 12, 0, 20, 15, 22, 8, 2
47.49
102.01
52.77
81
The data sets show the test scores of a group for the last two tests.
Test 1: {75, 75, 85, 80, 65, 70, 65} Test 2: {95, 85, 85, 90, 90, 95, 100}
Which data set had the SMALLER standard deviation?
Test 1 with a standard deviation of 6.9
Test 2 with a standard deviation of 6.9
Test 1 with a standard deviation of 5.2
Test 2 with a standard deviation of 5.2
