Nationwide auto parts uses a periodic review inventory control system for one of its stock items. the review interval is 4 weeks, and the lead time for receiving the materials ordered from its wholesaler is 1 weeks. weekly demand is normally distributed, with a mean of 150 units and a standard deviation of 30 units. refer to the standard normal table for z-values. a. what is the average and the standard deviation of demand during the protection interval? the average demand during the protection interval is nothing units. (enter your response as an integer.)

answer: 2 and 1

step-by-step explanation: got this question

- "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."

k

step-by-step explanation:

domit