False, because if you do the grouping method, it would be (x+8) (x - 4).
Your answer is going to be 55.76$
10% because 16.50 * 6 = 99 so without the coupon, its £99 with its £90 the extra £9 is 10% off 99 so they are getting a 10% discount
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:
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/
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=∑∑∑
Learn more about correlation coefficient at brainly.com/question/4219149
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Answer:
false
Step-by-step explanation:
The costs for a 12-month subscription is $36, and the magazine is delivered monthly. This means that 12 magazines (12 month) costs $36.
Also, we can determine the cost for each magazine from:
12 magazine = $36
Divide through by 12:
12 magazine/12 = $36/12
1 magazine = $3
The cost of 1 magazine is $3.
Therefore 2 magazine would cost $6 (2 * $3)
Hence, the statement: Mrs. Vasquez pays $9 for 2 magazines is false