A ride sharing service charges $4.25 for every ride, plus $0.30 per mile. If m represents miles, which rule for p(m) models the
1 answer:
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Answer:
B. The coefficient of determination is 54.76%. Therefore, 54.76% of the variation in weight can be explained by the regression line.
Step-by-step explanation:
The correlation coefficient is a "statistical measure that calculates the strength of the relationship between the relative movements of two variables". It's denoted by r and its always between -1 and 1.
The coefficient of determination is a measure to quantify how a model explains an dependent variable.
The formula for the correlation coeffcient is given by:
The formula for the coefficient of determination is
In our case the correlation coefficient obtained was 0.74
And the determination coefficient is , and if we convert this into % we got 54.76%
Assume that height is the predictor (X) and weight is the response (Y)
And the best answer for this case is:
B. The coefficient of determination is 54.76%. Therefore, 54.76% of the variation in weight can be explained by the regression line.
Answer:
Total FICA tax deducted from gross pay is $ 141 .22 .
Step-by-step explanation:
As given
Mira's gross pay is $1846.
The Social Security tax is 6.2% of gross pay.
6.2% is written in the decimal form.
= 0.062
Social Security tax = 0.062 × Gross pay
= 0.062 × 1846
= $ 114.452
As given
The Medicare tax is 1.45% of gross pay.
1.45% is written in the decimal form .
= 0.0145
Medicure tax = 0.0145 × Gross pay
= 0.0145 × 1846
= $ 26.767
Total FICA tax deducted from Gross pay = Social Security tax + Medicure tax
= $114.452+ $26.767
= $141.219
= $141.22 (Approx)
Therefore the total FICA tax deducted from gross pay is $ 141 .22 .