8: 54 a. m.
9: 12 a. m.
9: 24 a. m.
10: 24 a. m.
11: 18 a. m.
light a flashes every 12 minutes, and light b
flashes every 18 minutes. the two lights flash
at the same time at 8: 00 a. m. at how many of
the times listed above will they again both
flash at the same time?
f. 1
g. 2
h. 3
j. 4
k. 5

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

step-by-step explanation:

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