# Statistics

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Solution Library **

#### Sum Of Deviations Of Mean Is Zero And Empirical Rule Describes Highly Skewed Population

Question 1. The sum of deviations from the mean must be zero. 2. The median is said to be less sensitive to extreme values. 3. The Empirical Rule is used to describe a population that is highly skewed. Summary These true or false questions belong to Statistics and they di ... Read More

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#### Two Independent Events With Mutually Exclusive And Union Of Events

Question 1. If events A and B are independent and A is not an impossible event, then P(A/B) is not equal to zero. 2. If events A and B are mutually exclusive, then P(A/B) is equal to zero. 3. The union of events A and B is given by all basic outcomes common to both A and B. Summary ... Read More

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#### Ratio Variables With Unique Characteristics And Quantitative Variable

Question 1. Ratio variables have the following unique characteristic: A. Meaningful order B. An inherently defined zero value C. Categorical in nature D. Predictable 2. Which of the following is a quantitative variable? A. The make of a TV B. The VIN ... Read More

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#### Consumer Survey Represents Which Level Of Measurement And Example Of Nominal Variable

Question 1. Which of the following is a categorical or Nominal variable? A. Air Temperature B. Bank Account Balance C. Daily Sales in a Store D. The Social Security Number of a person E. Value of Company Stock 2. The level of Satisfaction in a Consumer s ... Read More

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#### Number Of Classes In Frequency Histogram And The Intervals In Frequency Distribution

Question 1. When developing a frequency distribution the class (group), intervals must be A. Large B. Small C. Whole numbers D. Mutually exclusive E. Equal 2. If there are 60 values in a data set, how many classes should be created for a frequency histog ... Read More

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#### Calculate Missing Frequency And Variance

Question 1. Consider the following frequency distribution. What is the missing value? Bin Frequency &nb ... Read More

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#### Calculation Of Standard Deviation And Chebyshevâ€™s Theorem Application

Question 1. According to a survey of the top 10 employers in a major city in the Midwest, a worker spends an average of 413 minutes a day on the job. Suppose the standard deviation is 26.8 minutes and the time spent is approximately a normal distribution. What are the times that approximately 99.73 ... Read More

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#### Calculation Of Standard Deviation And Median

Question 1. In a hearing test, subjects estimate the loudness (in decibels) of sound and the results are: 68, 67, 70, 71, 67, 75, 69, 62, 80, 73, 68 What is the median? A. 67 B. 70 C. 68 D. 69 E. 80 Put items in order: 62,67,67,68,68,69,70,71,73,75,80 Median = [11 ... Read More

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#### Two Mutually Exclusive Events Having Positive Probabilities

Question 1. Two mutually exclusive events having positive probabilities are ______________ dependent. A. Never B. Sometimes C. Always 2. If P(A) > 0 and P(B) > 0 and events A and B are independent, then: A. P(A) = P(B) B. P((A|B)) = P(A) C. P(A B) = 0 ... Read More

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#### Prepare Histogram, Frequency Polygon And Ogive Curve For The Given Data

Question Consider the following data on distances traveled by people to visit the local amusement park. Distance Frequency 1-8 miles &nb ... Read More

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#### Calculation Of Cumulative Frequency

Question Math test anxiety can be found throughout the general population. A study of 120 seniors at a local high school was conducted. The following table was produced from the data. Complete the missing parts. (Work step by step to solve this puzzle. Round the frequencies to the nearest whole num ... Read More

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#### Calculation Of Relative Frequency And Cumulative Frequency And Plotting Ogive Curve

Question The number of items rejected daily by a manufacturer because of defects for the last 30 days are: 22, 21, 8, 17, 25, 20, 18, 19, 14, 13, 11, 6, 21, 23, 4, 19, 11, 12, 16, 16, 10, 28, 24, 6, 21, 20, 25, 5, 17, 9 . Complete this frequency table for the above data showing columns for Frequenc ... Read More

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