Data from a sample of citizens of a certain country yielded the following estimates of average TV viewing time per month for all the citizens. The times are in hours and minutes.​ (NA, not​available) Viewing Method May 2008 May 2007 Change (%)
Watching TV in the home
Watching timeshifted TV
Using the internet
Watching video on internet 127:49
5:31
26:41
2:34
121:59
3:52
24:17 NA
5
43
10
NA
Is the study descriptive or​ inferential?
A. ​Inferential, because the statistics are used to describe the sample
B. ​Descriptive, because the statistics are used to describe the sample
C. ​Descriptive, because the statistics are used to make an inference about the population
D. ​Inferential, because the statistics are used to make an inference about the population

step-by-step explanation:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

step-by-step explanation:

given that megan owns a clothing boutique.

the profits of 2010, 11, are recorded and shown as follows:

years since     2010 0     1     2     3       4       5

profits made in 1000's   39       84     111     120   111     84

we find that profit gradually increases form 2010 to 2013 upto 120,   then starts decreasing.

the profits for 2012 and 2014 are the same while that of 2011 and 2015 are also the same.

this shows that there is symmetry about the line profit = 120000

hence answer is:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

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20

step-by-step explanation:

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation: