1) each week jim buys 10 pounds of macadamia nuts to sell at his store, the nut hut. the number of pounds he actually sells in a week is a continuous random variable y, which has the following probability density function:

fy(y) = y/50 if 0 fy(y) = 0 otherwise

(a) graph this density function.
(b) find the probability that at most four pounds of macadamia nuts are sold.

- "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."

idk

step-by-step explanation: