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Noun 2022 TMA 3 solutions
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[QUOTE="Bracet, post: 3467, member: 477"] Stt102 Question: If quartile range is 24 then quartile deviation is Answer: A: 12 Question: If mean absolute deviation of set of observations is 85 then value of quartile deviation is Answer: A: 708 Question: For recorded observation ratios measured by absolute variation are considered as Answer: A: relative measures Question: Sum of all squared deviations is divided by total number of observations to calculate Answer: A: population variance Question: If arithmetic mean is multiplied to coefficient of variation then resulting value is classified as Answer: C: standard deviation Question: Discrete variables and continuous variables are two types of Answer: D: quantitative classification Question: In stem and leaf display diagrams used in exploratory analysis stems are considered as Answer: C: leading digits Question: Classification method in which upper limit of interval is same as of lower limit class interval is called Answer: A: exclusive method Question: Data based on workers salary is given as 2500 2700 2600 2800 2200 2100 2000 2900 3000 2800 2200 2500 2700 2800 2600 and number of classes desired is 10 then width of class interval is Answer: A: 400 Question: Summary and presentation of data in tabular form with several non overlapping classes is referred as Answer: A: frequency distribution Question: Term used to describe frequency curve is Answer: A: symmetrical distribution Question: Histograms pie charts and frequency polygons are all types of Answer: A: one dimension diagrams Question: Exclusive method and inclusive method are ways of classifying data on basis of Answer: D: class intervals Question: Data classification which is based on variables such as production cost height and weight is considered as Answer: B: quantitative classification Question: Graphs which represents data on maps are considered as Answer: A: cartograms Question: Halfway point between lower class limits and upper class limits is classified as Answer: A: class mid point Question: Type of bar chart that is used to present deficit in loss excess in exports and deficit in imports is classified as Answer: C: deviation bar charts Question: Focus groups individual respondents and panels of respondents are classified as Answer: D: primary data sources Question: Variables whose measurement is done in terms such as weight height and length are classified as Answer: A: continuous variables Question: Suppose that a histogram of a data set is approximately symmetric and bell shaped Approximately percent of the observations are within two standard deviation of the mean Answer: C: 95 Question: Which of the following are considered measures of association Answer: C: Covariance and correlation Question: The difference between the first and third quartile is called the Answer: A: interquartile range Question: If a value represents the 95th percentile this means Answer: A: 95 of all values are below this point Question: For a boxplot the point inside the box indicates the location of the Answer: A: mean Question: The correlation coefficient is always Answer: D: between 1 and 1 Question: Which of the following are the two most commonly used measures of variability Answer: B: Variance and standard deviation Question: If mean absolute deviation of set of observations is 85 then value of quartile deviation is Answer: 708 Question: Data based on workers salary is given as 2500 2700 2600 2800 2200 2100 2000 2900 3000 2800 2200 2500 2700 2800 2600 and number of classes desired is 10 then width of class interval is Answer: 400 Question: In stem and leaf display diagrams used in exploratory analysis stems are considered as Answer: leading digits Question: Suppose that a histogram of a data set is approximately symmetric and Answer: 95 Question: Which of the following are the three most common measures of central location Answer: A Mean median and mode Question: If a value represents the 95th percentile this means Answer: A 95 of all values are below this point Question: For a boxplot the vertical line inside the box indicates the location of the Answer: B median Question: The mode is best described as Answer: D the most frequently occurring value Question: For a boxplot the point inside the box indicates the location of the Answer: A mean [/QUOTE]
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