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4 years ago

What is 5.27 in Tenths place

Mathematics

2 answers:

kirza4 [7]4 years ago

6 0

It is 5.30 because 27 is rounded to 30.

Aloiza [94]4 years ago

3 0

5.3 would be round to the tenth place.

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BRAINLIEST + POINTS!

sertanlavr [38]

Answer:

the correlation coefficient of the line of best fit is, 0.98247.

Step-by-step explanation:

Correlation Coefficient are used to find how strong relationship between the data. It expressed its values between +1 and -1. It is represented by r.

* if 0<r<1 indicates a strong positive relationship.

* -1<r <0 indicates a strong negative relationship.

* r=0 indicates no relationship at all.

The formula for this :

$r = \frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2-(\sum x)^2][n\sum y^2-(\sum y)^2]}}$

Given the data: (-3, -40) , (1, 12), (5, 72) and (7,137)

Here, n = 4

To calculate the correlation coefficient r;

Substitute the values of data in above formla of r , as shown in the Figure 1:

then;

$r=\frac{4\cdot 1451-(10)(181)}{[4\cdot84-(10)^2][4\cdot 256977 -(181)^2]}$

$r=\frac{5804-1810}{\sqrt{[336-100][102788 -32761]}}=\frac{3994}{\sqrt{[236][70027]}}$

$r=\frac{3994}{4065.26408} =0.98247$

Therefore, the correlation coefficient r is, 0.98247 (Positive relationship)

6 0

3 years ago

What is the median of the following salary list $32,019, $21,971, $27,512, $43,702, $38,860, $25,997

mylen [45]

Answer:

$29765.50

Step-by-step explanation:

Median is the middlemost value (or the average of the 2 middlemost value if there are even number of values) in an ascending order.

First, arrange the salary list in an ascending order.

$21,971 , $25,997 , $27,512 , $32,019 , $38,860 , $43,702

As we can see here, there are even number of values (6), so the median will be the average of the 2 middlemost value, which will be:

Median = $\frac{27512 + 32019}{2}$

= $\frac{59531}{2}$

= $29765.50

3 0

2 years ago

Read 2 more answers

4 2/3÷(-1 1/4)<br><br> A. 7 20/21<br> B. 1/36<br> C. 2.57

Varvara68 [4.7K]

I think it’s C but i’m not sure

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4 years ago

the length of a rectangle is 5 centimeters less than its width. what are the dimensions of the rectangle if it’s area is 176 squ

Allushta [10]

11 is the length

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3 years ago

There are 16 white balloons, 24 red balloons. Each arrangement must be identical. What is the greatest number of arrangements yo

katovenus [111]

Answer:

Step-by-step explanation:

hope i helped have a verey good day

4 0

3 years ago