Question: A grouped frequency distribution has the following values calculated: (4 Marks) Sfm=10450Sfm2=4598000n=25 The variance is closest to: A. 8456.5 B. 9730.1 C. 97.9 D. 9579.2

A grouped frequency distribution has the following values calculated: (4 Marks)

A grouped frequency distribution has the following values calculated: (4 Marks) Sfm=10450Sfm2=4598000n=25 The variance is closest to: A. 8456.5 B. 9730.1 C. 97.9 D. 9579.2 Question 7 (4 Marks) Another term for the lower quartile is the: A. 25th percentile B. 75th percentile C. 20th decile D. 10th decile Question 8 (4 Marks) Consider a data set with a mean of 26.5 , a median of 29.0 and a mode of 31.7 . Which statement is TRUE regarding the skewness of the data? A. Left skewed B. Symmetrical C Normal D. Right skewed

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