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alekssr [168]
3 years ago
10

Decrease £200 by 12.5%

Mathematics
2 answers:
andreyandreev [35.5K]3 years ago
6 0
The answer is 175 is the answer of the question
madam [21]3 years ago
3 0
Firstly we need to calculate 12.5% of 200. So if 200=100% and X=12.5%, then 12.5•200=100•X
2500=100X
X=25
Now we know that 12.5% of 200 is 25. 200-25=175
£200 decreased by 12.5% is £175
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3 years ago
1. How many variables are involved in the chi-square test?
GarryVolchara [31]

The result of the respective questions are:

  • This chi-square test only takes into consideration one variable.
  • The  type of chi-square test this is is a Goodness of Fit
  • df= 3
  • NO

<h3>How many variables are involved in the chi-square test?</h3>

a)

This chi-square test only takes into consideration one variable.

b)

The  type of chi-square test this is, is a Goodness of Fit

To test the hypothesis, we must determine whether the actual data conform to the assumed distribution.

The "Goodness-of-Fit" test is a statistical hypothesis test that determines how well the data that was seen resembles the data that was predicted.

c)

Parameter

n = 4

Therefore

Degrees of freedom

df= n - 1

df= 4 - 1

df= 3

d)

In conclusion

Parameters

\alpha = 0.05

df = 3

Hence

Critical value = 7.814728

Test statistic = 6.6

Test statistic < Critical value, .

NO, the result of this test is not statistically significant.

Read more about Probability

brainly.com/question/11234923

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3 0
2 years ago
$470 is raised by 30%. What is the value after the increase?
alekssr [168]
<h3>Answer:  $611</h3>

Work Shown:

30% of 470 = 0.30*470 = 141

The value goes up by $141, so the answer would be 470+141 = $611

A slight shortcut would be to say

1.30*470 = 611

This works because 1.30 = 1 + 0.30 = 100% + 30%

3 0
3 years ago
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adell [148]

Answer:

addition property of equality

Step-by-step explanation:

59 = x-26

We add 26 to both sides using the addition property of equality

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