5. Paul swims 20 lengths of a swimming pool in training for competition. His times, x seconds, for completing lengths of the pool are summarized by: Ex= 372 ; Ex² = 6952. What is the mean and its...


5. Paul swims 20 lengths of a swimming pool in training for competition. His times, x seconds, for completing<br>lengths of the pool are summarized by: Ex= 372 ; Ex² = 6952. What is the mean and its standard deviation?<br>a. mean = 18.6 ; standard deviation<br>b.<br>%3D<br>c. mean = 19.6; standard deviation = 2.23<br>17.5; standard deviation = 1.29<br>= 1.28<br>%3D<br>%3D<br>%3D<br>d. mean =<br>%3D<br>%3D<br>Mean =<br>18.02; standard deviation = 1.5<br>%3D<br>%3D<br>6. The distribution of data, where the mean, median, and mode are approximately equal and where the data is<br>clustered closely around the center is called the<br>a. Probability distribution<br>B. Normal probability distribution<br>c. central tendency<br>d. variability<br>

Extracted text: 5. Paul swims 20 lengths of a swimming pool in training for competition. His times, x seconds, for completing lengths of the pool are summarized by: Ex= 372 ; Ex² = 6952. What is the mean and its standard deviation? a. mean = 18.6 ; standard deviation b. %3D c. mean = 19.6; standard deviation = 2.23 17.5; standard deviation = 1.29 = 1.28 %3D %3D %3D d. mean = %3D %3D Mean = 18.02; standard deviation = 1.5 %3D %3D 6. The distribution of data, where the mean, median, and mode are approximately equal and where the data is clustered closely around the center is called the a. Probability distribution B. Normal probability distribution c. central tendency d. variability

Jun 07, 2022
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