1 points Save Answer Question 1 Which of the following does not adequately revea

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1 points Save Answer Question 1 Which of the following does not adequately reveal outliers? A. Stemplots B. Modified boxplots C Density curves D. Histograms 1 points Question 2 For the density curve below what percentage of the observations lies between 0.5 and 1.2? 0.5 0.5 1.5 2.0 A. 50% B. 35% C. 70% D. 25% 1 points Question 3 Which one of the following statements about a density curve is FALSE? A. The area under a density curve above any range of values is the proportion of a observations that fall in that range B. A density curve comes in many shapes, some of which are symmetric while others are skewed. C.A density curve can adequately describe outliers observed in data. D.A density curve always has an area beneath it equal to 1 E. A density curve is always on or above the horizontal axis. 1 points Save Answer Question 4 Which of the following statements about the standardized z-score of a value of a variable X, which has a mean of m and a standard deviation of s, is/are TRUE? A. The z-score has a mean equal to 0 B. The z-score has a standard deviation equal to 1 C.The z-score tells us how many standard deviation units from the original observation fall away from the mean. D.The z-score tells us the direction the observation falls away from the mean. E. All of the above statements about the z-score are true. 1 points Save Answer Question 5 A well-known maker of ams and jellies packages its jams in jars labeled "250 milliliters." The process used to fill the jars is known to dispense an amount of jam that is a Normally distributed variable with u 252 milliliters and o 0.9 mi ers. If changing or while keeping u the same were possible for this process. what should o be set at so that the percentage of jars filled with less than 250 milliliters will be at most 0.2%? A 2.38 C. 0.69 D. 0.82 E. It should not be within t 0.2 of any of the above

Explanation / Answer

question 1 : c - density curves

Question 2 : B- 35%

Question 3 : C - a density curve can adequately decribe outliers

Question 4 : option E- all the statements above

question6: 0.9868

Quetion 7 : option A

question 8: 0.0131

Question 9: option B

Question 10: option c - 0.819

Qus 11: option D

Qus 12 : option D

Qus 13 : optin D

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