The following boxplot is for the results of the women\'s 400 meter dash final ra

Question

The following boxplot is for the results of the women's 400 meter dash final race during the 2000 Olympics in Sydney, Australia. Cathy Freeman won in 49.11 seconds. Choose the correct statement about the boxplot. Which of the following is correct: The median time is less than 49.75 seconds. The fastest time of 49.11 seconds is an outlier. The median time is more than 50 seconds. The range is approximately 0.50 seconds. The slowest lime of 51.04 seconds is shown as an outlier. Which statistic is NOT resistant to an outlier in the data? Lower quartile Upper quartile IOR Standard deviation Median Which of the following best describes the standardized (z) score for an observation? It is the number of standard deviations the observation falls from the mean. It is the most common score for that type of observation. It is one standard deviation more than the observation. It is the center of the list of scores from which the observation was taken. It has a normal distribution. If an exam was worth 100 points, and your score was at the 80 th percentile, then your score was 80 out of 100. 80% of the class had scores at or above your score. 20% of the class had scorch at or above your score. 20% of the class had scores at or below your score.

Explanation / Answer

SOlutioNA:

From boxplot outlier is 51.04 above the box

the slowest time of 51.04 is an outlier

Solutionb

Standard deviation is not resistant

Solution23

z=x-mean/std devaition

for ex z=0.5

it is 0.5 deviations away from the mean

AnswerA

it is the number of standard deviations the observation falls from the mean

Solution24:

80th percentile means

It means that 80% of the students' scores were lower than yours and 20% of the students' scores were higher than yours.

from options

Answer C

20% above your score

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