The average annual cost (including tuition, room, board, books, and fees) to attend a public college takes nearly a third of the annual income of one typical family with college-age children (Money, April 2012). At private colleges, the average annual cost is equal to about 60% of the typical family′s income. The following random samples show the annual cost of attending private and public colleges. Data are in thousands of dollars. Private Colleges
52.8 43.2 45.0 33.3 44.0
30.6 45.8 37.8 50.5 42.0
Public Colleges
20.3 22.0 28.2 15.6 24.1 28.5
22.8 25.8 18.5 25.6 14.4 21.8

Required:
Develop a 95% confidence interval of the difference between the annual cost of attending private and public colleges.

- "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."

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

they go with it happens or they mite give a chance?

step-by-step explanation:

8+10

step-by-step explanation:

you multiply 4 by 2 and 5 by 2