Question
QUESTION 6 If no information concerning the shape of the distribution of a population is known except for that the population mean is 50 and
QUESTION 6
If no information concerning the shape of the distribution of a population is known except for that the population mean is 50 and the population standard deviation is 5. What percentage of the population is distributed between 35 and 65?
A) Not enough information to find the percentage. B)at least 75% C)at least 89% D)approximately 95.4% E)approximately 99.74%
QUESTION 7
The weights for a sample of five middle school students are: 100, 72, 111, 98, 106. What is the sample standard deviation of this sample?
A)15.09 B) 97.40 C) 227.80 D) 182.241
QUESTION 8
Which of the following is a measure ofSPREADand is less sensitive to outliers?
A) Variance B)Range C) Inter-quartile Range D) Standard deviation E) Median
QUESTION 9
Which of the following is/are measure of center? (There could be more than one correct answer. Check all correct answers.)
A)Inter-quartile Range B) Median C) Mean D) Standard Deviation E) Mode
QUESTION 10
Which of the following statistics is best for examining the distribution of ONE Categorical variable, such as race of employees?
A)Pie Chart B) Boxplot C) Histogram
D) Scatter Plot
QUESTION 11
Which of the following statistics is best for examining the association between of TWO Categorical variables?
A .Scatter Plot
B .Side-by-side Boxplot
C. Cluster Bar Chart
D. Histogram
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