kkmonsterhigh18
20.12.2019 •
Mathematics
10% of kindergarteners know how to read before school starts. if there are 150 kindergarteners at a
school, how many know how to read on the first day of school?
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Ответ:
15
Step-by-step explanation:
To get 10 percent, you divide by 10.
150 divided by 10 equals 15.
Ответ:
Correlation coefficient of the data is 0.9.
Option C.
Explanation:
Correlation is the relation of one variable with the other variable. It shows the effect on one variable because of the other variable. The coefficient of the correlation varies from 1 to -1.
The correlation coefficient of this scatterplot is 0.9 because the data points are not scattered in this scatterplot and are rather clustered. Moreover the slope is from left to right which is in the upward direction. So the coefficient is positive.