Question

This table contains data on the number of people visiting a historical landmark over a period of one week.. . Day Number of. Visitors. 1 120. 2 124. 3 130. 4 131. 5 135. 6 132. 7 135. . Sketch a scatter plot and draw an estimated regression line. Which of these values comes closest to the slope of your regression line?. . 0.6. . 1.0. . 1.6. . 2.4. . 3.2

Answer 1

Answer:

$\boxed{\boxed{\text{slope}=2.4}}$

Step-by-step explanation:

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.

Here,

x = day of a week

y = number of visitors

The given data points are $(1,120),(2,124),(3,130),(4,131),(5,135),(6,132),(7,135)$

Plotting the scatter plot and regression line in Excel, the following is generated which is attached further below.

The regression line is,

$y = 2.357x + 120.1$

Comparing it with the general slope-intercept form $y=mx+c$,

slope = $2.357\approx 2.4$

Answer 2

We are given with a table that projects data on people visiting a landmark for over one week. In this case,the slope of the line of the graph can be obtained by plotting the data in Excel. Through excel, the equation of the line is y = 2.3571x + 120.14 with r2 = 0.82. hene the answer is close to C 2.4