A) Which one of the following statistics is NOT an example of discrete data? Households watching Canadian Idol. B. Employees reporting in sick. C. Distance traveled between Toronto and Ottawa. D. Members of the York Region Lions Club. E. Family members. B) A website monitors customer complaints and organizes these into 6 distinct categories. Over the past year the company has received 234 complaints. One possible graphical method for representing these data is A histogram. A bar chart A Cumulative frequency polygon A scatter plot C) Which of the following statements about the mean is NOT true? It is more affected by extreme values than the median It is a measure of central tendency It is equal to the median in skewed distributions It is equal to the median in symmetric distributions
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
A)
Which one of the following statistics is NOT an example of discrete data?
Households watching Canadian Idol.
B. Employees reporting in sick.
C. Distance traveled between Toronto and Ottawa.
D. Members of the York Region Lions Club.
E. Family members.
B)
A website monitors customer complaints and organizes these into 6 distinct categories. Over the past year the company has received 234 complaints. One possible graphical method for representing these data is
- A histogram.
- A bar chart
- A Cumulative frequency
polygon - A
scatter plot
C)
Which of the following statements about the
- It is more affected by extreme values than the
median - It is a measure of
central tendency - It is equal to the median in skewed distributions
- It is equal to the median in symmetric distributions
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