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Natali5045456 [20]
3 years ago
7

2,837 + 3,990 What the answer

Mathematics
1 answer:
Dovator [93]3 years ago
7 0

Answer:

6,827

Step-by-step explanation:

2,837 + 3,990 = <em>6,827</em>

<em>PLEASE DO</em><em> </em><em>MARK ME</em><em> </em><em>AS BRAINLIEST</em><em> </em><em>IF MY</em><em> </em><em>ANSWER IS</em><em> </em><em>HELPFUL</em><em> </em><em>;</em><em>)</em><em> </em>

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The chi-squared test statistic will be 3.11. The test statistic is contrasted with a predicted value based on the Chi-square distribution.

<h3>What is the chi-squared test statistic?</h3>

Finding the squared difference between the actual and anticipated data values, then dividing that difference by the expected data values, constitutes the test statistic.

The formula for the chi-squared test statistic is;

\sum \frac{(O_i-E_i)^2}{E_i } \\\\

Where,

\rm O_i is the observed value

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The chi-square test statics is;

\rm( \frac{18-18}{18} )^2 +( \frac{14-18}{18} )^2 + (\frac{24-18}{18} )^2+( \frac{16-18}{18} )^2 \\\\ 0+ \frac{16}{18}+ \frac{36}{18} +\frac{4}{18}\\\\ \frac{56}{18} \\\\ 3.11

Hence, the chi-squared test statistic will be 3.11.

To learn more about the chi-squared test statistic refer;

brainly.com/question/14082240

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2 years ago
Aimee must add together the following numbers:
Feliz [49]
The correct answer is C. Aimee used the Associative and Commutative properties to put numbers that are easy to add next to each other.
4 0
3 years ago
If x = 9, what is the value of 6(x - 2)?
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Answer: 42

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Step-by-step explanation:

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a 10 ft ladder leans against a wall with its foot braced 3ft. from wall's base how far up the wall does the ladder resach
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Ladder makes a right triangle with the wall and ground. The hypotenuse = length of the ladder = 10 ft 
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