Twenty-five percent of the customers entering a grocery store between 5 p. m. and 7 p. m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.
(a) what is p(1), that is, p(x = 1)? (round the answer to five decimal places.)p(1) =(b) what is p(x 1)? (round the answer to five decimal places.)p(x 1) =(c) what is p(2 x)? (round the answer to five decimal places. hint: make use of your computation in part ((2 x) =(d) what is p(x 1)? (round the answer to five decimal places.)p(x 1) =

yes

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."

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step-by-step explanation:

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