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dangina [55]
3 years ago
9

PLEASE HELP ME???? What is the value of the expression below? A. 8 B. 4 C. 1 D. 2

Mathematics
1 answer:
shutvik [7]3 years ago
4 0
I did this in london! Its B. 4 For londons answers! by mate!
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Use Word to documents your comparison of the two years and explain your findings in at least two paragraphs. Including: Explain
pickupchik [31]

In statistics, the standard deviation deviation may be a measure of the quantity of variation or dispersion of a group of values. The margin of error may be a statistic expressing the number of sampling error within the results of a survey. The correlation could be a statistical measure of the strength of the connection between the relative movements of two variables.

Given nothing and that we need to explain standard deviation. margin of error, correlation coefficient .

Standard deviation

In statistics, the standard deviation may be a measure of the number of variation or dispersion of a group of values. an occasional variance indicates that the values tend to be near the mean of the set, while a high variance indicates that the values are detached over a wider range.

Formula: \sqrt{(x-x bar)^{2}/N }

where x bar is mean and N is size of population.

Margin of error

The margin of error may be a statistic expressing the quantity of sampling error within the results of a survey. The larger the margin of error, the less confidence one should have that a poll result would reflect the results of a survey of the complete population.

Formula for M=z*s/\sqrt{n}

here z is z value of Z score , s is variance , n is that the sample size.

Correlation coefficient

In statistics, the Pearson parametric statistic ― also called Pearson's r, the Pearson product-moment parametric statistic, the bivariate correlation, or colloquially simply because the coefficient of correlation ― could be a measure of linear correlation between two sets of information.

Formula=∑(x_{i} -x bar)(y_{i} -y bar)/\sqrt{}∑(x_{i} -x bar)^{2}∑(y_{i}-ybar) ^{2}

Learn more about correlation coefficient at brainly.com/question/4219149

#SPJ4

4 0
2 years ago
What is 90x10 free brainlest and points
ss7ja [257]

Answer:

900

Step-by-step explanation:

  • 90 * 10
  • 900
8 0
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Which category do all of these shapes belong to
Nataly [62]

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Step-by-step explanation:

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3 years ago
What is 4x8 please answer I’ll give you 95 points
Rina8888 [55]

Answer:

32

Step-by-step explanation:

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What is the mean set of numbers -3, -2,0,3,17
Elan Coil [88]

I think its 2

Just give me a like

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3 years ago
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