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18 questions
What is the standard deviation for the data given:
5, 10, 7, 12, 0, 20, 15, 22, 8, 2
6.89
10.1
7.26
9
What does this symbol represent?
Standard Deviation
Variance
Mean Absolute Deviation
Median
What is the standard deviation for the data given:
{12, 13, 29, 18, 61, 35, 21}
293.67
15.87
17.14
41.98
What is the variance for the data given:
5, 10, 7, 12, 0, 20, 15, 22, 8, 2
47.47
102.01
52.77
81
68% of the data lies within:
3 Standard Deviations of the Mean
2 Standard Deviations of the Mean
1 Standard Deviation of the Mean
95% of the data lies within:
3 Standard Deviations of the Mean
2 Standard Deviations of the Mean
1 Standard Deviation of the Mean
99.7% of the data lies within:
3 Standard Deviations of the Mean
2 Standard Deviations of the Mean
1 Standard Deviation of the Mean
This data is:
Approximately normally distributed
Not normally distributed
Select the sampling method that would most fairly represent the people in the viewing area.
100 people that are trying out for a reality TV show
100 students at your middle school
Every 100th person at a shopping mall
To evaluate the defect rate of its memory chips, an integrated circuit manufacturer tests every 100th chip off the production line.
Biased Sample
Unbiased Sample
A real estate agent surveys people about their housing preferences at an open house for a luxury townhouse.
Biased Sample
Unbiased Sample
To determine the most common injury cared for in an emergency room, a reporter goes to the same hospital every afternoon for one month during the summer and observes people entering the emergency room. She concludes that second degree sunburn is the most common injury.
Unbiased
Biased
In a population of five university students with GPAs of 2.5, 2.3, 1.7, 1.4, and 1.1, a sample of three students are considered. What would be the standard deviation of the resulting sampling distribution?
0.53
0.41
0.35
0.22
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