The dot plots below show the time it takes for 9 U. S. students and 9 Australian students to get to school. Which statement is TRUE about the variability of the Australian data set?

Medium 61b7c1326f18c0454649b8a8
It is exactly equal to the variability of the U. S. data set
It is significantly less than the variability of the U. S. data set
It is significantly greater than the variability of the U. S. data set
It is approximately equal to the variability of the U. S. data set
Variability cannot be determined from dot plots

b.an increase in a causes b to decrease

72 is the answer to this problem

the degrees would remain the same ( the number to the left of the decimal point.

the multiply the decimal by 60 to get the minutes and use the numbers to the left of the decimal point.

then multiply the decimal portion of that by 60 for the seconds and round off as needed.

39 .956652

the 39 remains the degrees.

the minutes = 0.956652 x 60 = 57.39912

the minutes = 57

the seconds = 0.39912 x 60 = 23.95 = 24 ( rounded to nearest tenth)

so 39.956652 = 39 degrees, 57 minutes and 24 seconds

-75.159809

the -75 remains the degrees

the minutes = 0.159809 x 60 = 9.58854

the minutes = 9

the seconds = 0.58854 x 60 = 35.31, rounded to nearest tenth = 35.3 seconds

so -75.159809 = -75 degrees, 9 minutes and 35.3 seconds.

the first coordinate is north or south, since it it positive it is north.

the second number is east or west, because it is negative it is west.

39 degrees, 57 minutes and 24 seconds n

-75 degrees, 9 minutes and 35.3 seconds w