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castortr0y [4]
3 years ago
5

Please help!!!! Due today

Mathematics
2 answers:
Vika [28.1K]3 years ago
7 0

The answer is B.........

AysviL [449]3 years ago
3 0

the answer is....... B

- 64

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in an election between two candidates one got 55% of the total valid votes 20% votes were invalid if the total number of votes w
timurjin [86]

Answer:

25%- 1875 Votes

<em>7500 x 0.55 = 4125  (</em><em>first candite valid votes</em><em>)</em>

<em>7500 x 0.20 = 1500 (</em><em>invalid</em><em>)</em>

<em>first candite valid votes</em><em> </em><em>(</em><em>55</em><em>) + invalid votes (</em><em>20</em><em>) = 75% of total votes </em>

<em>first candite valid votes</em><em> </em><em>(</em><em>4125</em><em>) + invalid votes (</em><em>1500 </em><em>) = 5625 of total votes </em>

<em />

<em>100 (</em><em>total</em><em> </em><em>percent of votes</em><em>) - 75 (</em><em>total percent of votes</em><em>) = 25% Votes Left</em>

<em>7500 (</em><em>total</em><em> </em><em>number of votes</em><em>) - 5625 (</em><em>total number of votes</em><em>) = 1875 Votes Left</em>

<em>7500 x 0.25 = 1875 (</em><em>valid votes for the other candite</em><em>)</em>

<em>          </em>

4 0
3 years ago
Calculating the degrees of freedom, the sample variance, and the estimated standard error for evaluations using the t statistic
Yuliya22 [10]

Answer:

a) For the first part we have a sample of n =10 and we want to find the degrees of freedom, and we can use the following formula:

df = n-1= 10-1=9

d.9

b) s^2 = \frac{SS}{n-1}= \frac{600}{41-1}= 15

a.15

c) For this case we have the sample size n = 25 and the sample variance is s^2 =400 , the standard error can founded with this formula:

SE = \frac{s^2}{\sqrt{n}}= \frac{400}{\sqrt{25}}= 80

Step-by-step explanation:

Part a

For the first part we have a sample of n =10 and we want to find the degrees of freedom, and we can use the following formula:

df = n-1= 10-1=9

d.9

Part b

From a sample we know that n=41 and SS= 600, where SS represent the sum of quares given by:

SS = \sum_{i=1}^n (X_i -\bar X)^2

And the sample variance for this case can be calculated from this formula:

s^2 = \frac{SS}{n-1}= \frac{600}{41-1}= 15

a.15

Part c

For this case we have the sample size n = 25 and the sample variance is s^2 =400 , the standard error can founded with this formula:

SE = \frac{s^2}{\sqrt{n}}= \frac{400}{\sqrt{25}}= 80

8 0
3 years ago
594 is 450% of what number?
r-ruslan [8.4K]

Answer: 2,673

Step-by-step explanation:

450% × 594 =

(450 ÷ 100) × 594 =

(450 × 594) ÷ 100 =

267,300 ÷ 100 =

3 0
4 years ago
Read 2 more answers
Which of the following is a solution of 4x^2=-9x-4
NeTakaya

Answer:

(-9+√17)/8

Step-by-step explanation:

its an example of quadratic

4 0
3 years ago
What graph represents the following piecewise defined function? <br> g(x)={x^2, x&lt;0, 1/2x, 0 4
Svetlanka [38]

Answer:

The Answer above The Image

Step-by-step explanation:

Thanks…………………

3 0
3 years ago
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