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snow_tiger [21]
2 years ago
11

Someone please help me, I’m doing a final right now, and this question so confusing.

Mathematics
2 answers:
Sauron [17]2 years ago
4 0

Answer:

C and D

Step-by-step explanation:

C: (2,0)

D: (0,4)

scZoUnD [109]2 years ago
3 0

Answer:

I did the math but I'm not quite sure... so I would say C and D

Step-by-step explanation:

Someone can add on to this list if there are more..

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Willow is 63 inches tall. Her brother jayden is 6 feet 5 inches tall. How many inxhes twller is jayden?
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Six different​ second-year medical students at Bellevue Hospital measured the blood pressure of the same person. The systolic re
ArbitrLikvidat [17]

Answer:

Range = 149-131=18

s^2 =\frac{(131-139.5)^2 +(137-139.5)^2 +(138-139.5)^2 +(141-139.5)^2 +(141-139.5)^2 +(149-139.5)^2}{6-1}=35.1s =\sqrt{35.1}=5.9

B. ​Ideally, the standard deviation would be zero because all the measurements should be the same.

Step-by-step explanation:

For this case we have the following data:

131 137 138 141 141 149

For this case the range is defined as Range = Max-Min

And for our case we have Range = 149-131=18

First we need to calculate the average given by this formula:

\bar X = \frac{\sum_{i=1}^n X_i}{n}=\frac{837}{6}=139.5

We can calculate the sample variance with the following formula:

s^2 = \frac{\sum_{i=1}^n (X_i -\bar x)^2}{n-1}

And if we replace we got:

s^2 =\frac{(131-139.5)^2 +(137-139.5)^2 +(138-139.5)^2 +(141-139.5)^2 +(141-139.5)^2 +(149-139.5)^2}{6-1}=35.1

And the standard deviation is just the square root of the variance so then we got:

s =\sqrt{35.1}=5.9

If the​ subject's blood pressure remains constant and the medical students correctly apply the same measurement​ technique, what should be the value of the standard​ deviation?

For this case the variance and deviation should be 0 since we not evidence change then we not have variation. And for this case the best answer is:

B. ​Ideally, the standard deviation would be zero because all the measurements should be the same.

8 0
3 years ago
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