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salantis [7]
1 year ago
10

what is the equation of the line of best fit for the following data round the slope and y intercept of the line to three decimal

places

Mathematics
2 answers:
Leya [2.2K]1 year ago
7 0

Answer:

A. y = 0.894x +0.535

Step-by-step explanation:

A graphing calculator or spreadsheet can do the computation for you, as in the attached.

_____

The x- and y-values of the data set <em>almost</em> agree, so the slope will be near +1. Selection A is the only choice that matches that assessment.

Rzqust [24]1 year ago
5 0

Answer:

A) y = 0.894x + 0.535

Step-by-step explanation:

We can us a graphing calculator for this.  We will enter the values for x into one list and the values for y into the second list.  We graph the scatter plot and then run the regression.  When we do this, we get

y = ax + b

a = 0.89370078

b = 0.53543307

Rounding to 3 decimal places, we have a = 0.894 and b = 0.535.

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A portfolio consisting of four stocks is expected to produce returns of minus9%, 11%, 13% and 17%, respectively, over the next f
anastassius [24]

Answer:

standard deviation of these expected returns = 0.0295 or 2.95%

Step-by-step explanation:

The detailed step is shown in the attachment

8 0
1 year ago
Mrs. Ronilo had her students make a stem-and-leaf plot of the heights of all of the students in the class. The mean was 55. Dave
shutvik [7]
Given that the mean is 55 inches  and Dave is 57 inches, he would have increased the mean of the height in the stem-and-leaf plot that the students were making. This is however is also dependent upon the central tendency that was used, in this case the central tendency is mean or average. 
8 0
1 year ago
Read 2 more answers
Harper knows he is 50 yards from school. The map on his phone shows that the school is 34 inch from his current location. How fa
laila [671]

To solve this problem you must apply the proccedure shown below:

1. We know that 1 yard is 36 inches, therefore, 50 yards expressed in inches is:

(50)(36)=1800in

2. If he is 50 yards from school and the map shows that the school is 34 inches from his current location, when it shows 3 inches the real distance is:

\frac{(1800in)(3in)}{34in}=158.82in

3. If you can to express it in yards:

\frac{158.82}{36} =4.41 yd

Therefore, the answer is: 158.82 inches or 4.41 yards.

8 0
2 years ago
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A man has 28 coins in his pocket, all of which are dimes and quarters. if the total value of his change is 520 cents, how many d
nordsb [41]
Assuming x = dimes, y = quarters

x + y = 28 \\ 0.1x + 0.25y = 5.20

x + y = 28 \\ x = 28 - y

Substitute that into,
0.1(28 - y) + 0.25y = 5.20 \\ 2.8 - 0.1y + 0.25y = 5.20 \\0.15y = 2.4 \\ y = 16

Answer : He has 16 quarters.

Hope this helps. - M
5 0
1 year ago
Write standard form<br> 5+0.5+0.03+0.006
zmey [24]

Answer:

5.5360

Step-by-step explanation:

I added

5+0.5= 5.5

5.5+0.03=5.53

5.53+0.006=

5.5360

3 0
1 year ago
Read 2 more answers
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