Upper a packager wraps nbspone item every 10 minutes, so 240 items are completed in her first week of work. her manager checks her work by randomly selecting a day of the week comma then reviewing all the items she completed that day. does this sampling plan result in a random sample? simple random sample?

yes for sampling plan result in a random sample

no for sampling plan result in simple random sample

Step-by-step explanation:

total item = 240

time = 10 min

to find out

does sample plan result in  random sample and does Simple random sample

solution

we know he do wrap 240 item in a week

and every item is wrap in 10 min

and check in a day of week

so we can say here directly by given data every item not selected every day

so                  

yes there are for some item of all group are possible same chance of select in random sample

and                    

no for simple random sample because each and every item is not selected

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)