Three-fifths of the members of the Spanish club are girls. There are a total of 30 girls in the Spanish club. Which statements c
an be used to solve for x, the total number of members in the Spanish club? Select three options. Okx X = 30 3 х 5 - 30 3 513 X = 5 of(x=30(2) x=(2 35 53 X= 30 3 O x = 50
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Answer:
Step-by-step explanation:
Data given
n=20 represent the sampel size
represent the sample mean for the independent variable (IQ score of the husband)
represent the sample mean for the dependent variable.
r =0.925 represent the correlation coefficient
Solution to the problem
The general expression for a linear model is given by:
Where is the intercept and
the slope
For this case we have a linear model given by the following expression:
Where -3.34 is the intercept and 1.07 the slope. In order to find the best predicted value when X = 91 we just need to replace into the equation the value of 91 and we got this:
On this case is the best predicted value because we have an unbiased estimator.