A graphing calculator or spreadsheet can compute the correlation coefficient for you. The points are more or less on a line with positive slope, so a choice of about +0.9 is appropriate.
A scatter plot is a two-dimensional data visualization that uses dots to represent the values obtained for two different variables one plotted along the x-axis and the other plotted along the y-axis.
A regression line is a straight line that describes how a response variable y changes as an variable x changes. It is the relation between two variables x and y.
x = day of a week
y = number of visitors
The given data points are
Plotting the scatter plot and regression line in Excel, the following is generated which is attached further below.
The regression line is,
Comparing it with the general slope-intercept form ,
Given that is table containing no of visitors and frequency.
We are to draw a scatter plot and also find correlation coefficient
We find that correlation is 0.9055
i.e. Option C is right
Scatter plot is shown in excel sheet.
what number comes next in this sequence...