1. Find the mean, median, mode, and range of the following values: 17, 7, 11, 13, 2, 12, 7.

a. Mean = 8.5
Mean = 9.9
Median 11
Median = 11
Mode 11
Mode = 7
Range = 15
Range = 15
Mean = 9.9
Mean = 9.9
Median = 13
Median = 13
Mode = 7
Mode = 11
Range = 19
Range = 19

hope this !

step-by-step explanation:

d = distance between moon and sun, which in this problem is the hypotenuse of a right triangle.  

the distance y is the side opposite to angle x in the right triangle.   use the definition of the sine function from basic trigonometry.

sin(x) = y/d ⇒

d = y/sin(x)

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."