Abby is collecting rainfall data. she finds that one value of the data set is a high-value outlier. which statement must be true?
a) abby will use a different formula for calculating the standard deviation.
b) the outlier will increase the standard deviation of the data set.
c) the spread of the graph of the data will not change.
d) abby will not use the mean when calculating the standard deviation.

B) The outlier will increase the standard deviation of the data set.

Step-by-step explanation:

We know that the measures of central tendency are mean, median and mode. The outliers affect the mean value of a data but have minor effect on median or mode of the given data set .

Standard deviation measures spread around the mean.Therefore because of affect on mean, standard deviation can be greatly affected if the mean gives a poor measure of central tendency.

Hence, if there is high - value outlier in a data set then it will increase the standard deviation of the data set.

The correct answer is b just did the test

a) 0.25x times 3. (could be wrong on equation.)

b) 2.25 pound of dark chocolate. (can i eat all the chocolate? plz? anyway, again, could be wrong, but i hope im right. all the chocolate together should be 5.25 pounds)

have a good day!

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4