Answer:
x=15 and y=49
Step-by-step explanation:
y+16=5x-10
and (y+16) + (8x-5)=180
so y=5x-26 and then
plug in for y so 5x-26+16+8x-5=180
that means x=15
plug in for x
y+16= 5(15)-10
that means y=49
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Answer:
a. Mean and Median will increase by $1,000.
If every teacher was to see their salary increase by $1,000 then the mean will also increase by $1,000 because each data value in the set increased by $1,000 but the number of teachers did not.
The Median will also increase by 1,000 because with all the values increasing by the same number, the middle position will still be the same but will have increased by $1,000.
b. The Extremes and the Quartiles will increase by $1,000
Quartiles like medians are simply positions occupied by a number in the data set. If all values increase by the same amount, the numbers occupying the quartile positions will increase by $1,000 as well. The same goes for the extremes.
Standard deviation will remain the same.
Standard deviation measures the dispersion around the mean. If the both the mean and the data values increase by the same amount, the dispersion will remain the same as the increases will cancel each other out.
Answer:
Step-by-step explanation:
Volume of a cuboid = length × breadth × height
lenth = 7
Breadth = 10
Height = 9
7 x 10 x 9
= 630 yd^2
Answered by G a u t h m a t h
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the regression line indicates whether the slope of the regression line is positive or negative is a proportion will be between 0 to 1
Regression is a statistical method that links a dependent variable to one or more independent (explanatory) variables. A regression model can demonstrate whether variations in the dependent variable are related to variations in one or more of the explanatory variables.
Learn more about regression here
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