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Irina18 [472]
3 years ago
7

When a trend line is drawn on a scatterplot, there are 4 points above the trend line. About how many points should be below the

trend line?
Mathematics
2 answers:
motikmotik3 years ago
6 0

Answer:

The number of points that should lie below the trend line is:

4.

Step-by-step explanation:

" The general rule of thumb is to have your trend line as close as possible to all data points, and with equal number of points above and below it "

The trend line is also called line of best fit.

It is given that:

When a trend line is drawn on a scatter plot, there are 4 points above the trend line.

Hence, the number of points that should lie below the trend line are:

4.

scoundrel [369]3 years ago
5 0
There is no exact rule for lines of best fit. However, in general, there should be roughly the same amount above as below. So, if we are following this rule, there should be about 4 below as well. 
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A total of 815 tickets were sold for the school play. They were either adult tickets or student tickets. There were 65 more stud
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Answer:

<u>375 Adult Tickets.</u>

Step-by-step explanation:

Here, we can simply set up an equation using variable <em>x </em>in place of the unknown student/adult tickets.

x = # of <u>adult</u> tickets sold

x + 65 = # of <u>student</u> tickets sold.

1) x + x + 65 = 815 (set both ticket amounts equal to the total)

2) 2x + 65 = 815 (added common variables together)

3) 2x = 750 (negated the +65, subtracted it from both sides)

4) x = 375 (divided both sides by 2)

5) 815 - 375 = 440 (subtracted the x from the total number of <u>adult</u> tickets, to recieve the amount of <u>childrens</u>' tickets.

Therefore,

Since there were fewer adult tickets sold (-65), 375 is the number of adult tickets, and 440 is the number of student tickets.

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2 years ago
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Sofia is planning her physical activities for the week and wants to choose an activity that will help her build stamina. She sho
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Strengthens leg muscles and includes cardio
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Four adults and five children go to see a movie and buy $15 worth of concessions. The total cost of their trip is $71. If each c
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Answer:

$7.75

Step-by-step explanation:

Given: Adults = 4, Children = 5, All worth = $15, Total cost = $71, Each child's ticket = $5

To find: How much the adult tickets are

Solution: Use the 5 tickets at $5 to get $25

Add the $15 for concessions to reach $40

                            25 + 15 = 40

Subtract $40 from the 71 spent to get $31

                            71 - 40 =  31      

Now, divide the 31 by 4 for the number of adults which equals $7.75

                             31 ÷ 4 = 7.75

So, the cost of the adults' tickets is $7.75

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