Mafs.912.s-id.1.3
the number of calls received by a technical support center during 22 randomly selected
days is listed. identify the outlier, and describe how it affects the mean and the standard
deviation.
| 50 | 57 77 66 50 57 82 70 | 62 | 64 | 69
7 66 53 72 51 88 98 65 11 68 88
the outlier is 11. the outlier in the data set causes the mean to decrease from about 17.4
to about 13 and the standard deviation to increase from 65.5 to about 68.1.
b. the outlier is 11. the outlier in the data set causes the mean to decrease from about 68.1
to 65.5 and the standard deviation to increase from about 13 to about 17.4.
c. the outlier is 88. the outlier in the data set causes the mean to increase from about 17.1 to
about 17.4 and the standard deviation to increase from 64.43 to about 65.5.
d. the outlier is 88. the outlier in the data set causes the mean to increase from 64.43 to
about 65.5 and the standard deviation to increase from about 17.1 to about 17.4.

In a test for esp (extrasensory perception), the experimenter looks at cards that are hidden from the subject. each card contains either a star, a circle, a wave, a cross or a square.(five shapes) as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. when the esp study described above discovers a subject whose performance appears to be better than guessing, the study continues at greater length. the experimenter looks at many cards bearing one of five shapes (star, square, circle, wave, and cross) in an order determined by random numbers. the subject cannot see the experimenter as he looks at each card in turn, in order to avoid any possible nonverbal clues. the answers of a subject who does not have esp should be independent observations, each with probability 1/5 of success. we record 1000 attempts. which of the following assumptions must be met in order to solve this problem? it's reasonable to assume normality 0.8(1000), 0.2(1000)%30 approximately normal 0.8(1000), 0.2(1000)% 10 approximately normal srs it is reasonable to assume the total number of cards is over 10,000 it is reasonable to assume the total number of cards is over 1000

Simplify this expression. 8x 16(x + y)

Acompany makes steel lids that have a diameter of 13 inches. what is the area of each lid? round your answer to the nearest hundredth