# Statistics Test #2

## Unlock all answers in this set

question
What does it mean if a statistic is​ resistant?
Extreme values​ (very large or​ small) relative to the data do not affect its value substantially
question
The U.S. Department of Housing and Urban Development​ (HUD) uses the median to report the average price of a home in the United States. Why do you think HUD uses the​ median?
HUD uses the median because the data are skewed right
question
An insurance company crashed four cars of the same model at 5 miles per hour. The costs of repair for each of the four crashes were ​\$433​, ​\$440, ​\$495​, and ​\$207 . Compute the​ mean, median, and mode cost of repair.
Mean: \$393.75 Median:\$436.5 Mode: None
question
The following data represent the weights​ (in grams) of a simple random sample of a candy. 0.90 0.87 0.83 0.92 0.90 0.86 0.86 0.87 0.81 0.84 Determine the shape of the distribution of weights of the candies by drawing a frequency histogram and computing the mean and the median. Which measure of central tendency best describes the weight of the​ candy?
Mean: 0.866 Median: 0.865 Which tendency described the weight of the candy better? A: Mean
question
A professor has recorded exam grades for 10 students in his​ class, but one of the grades is no longer readable. If the mean score on the exam was 82 and the mean of the 9 readable scores is 86​, what is the value of the unreadable​ score?
10 X 82 = 820 - 9 X 86= 774. 820 - 774 = 46 A= 46
question
The standard deviation is used in conjunction with the​ ______ to numerically describe distributions that are bell shaped. The​ ______ measures the center of the​ distribution, while the standard deviation measures the​ ______ of the distribution.