Please help 50 POINTS Glen has a jar full of different colored marbles and would like to take a sample to find which color he has the least. Which method is best for taking a random sample. A) selecting three marbles from the jar

B) selecting marbles of his favorite color from the jar

C) selecting a handful of marbles from the jar without looking

D) selecting two of each color marble from the jar

the answer is c

Step-by-step explanation:

A,C,D

Step-by-step explanation:

These are at random B is your favorite color and not random

x divided by 8=y

step-by-step explanation:

- "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."