A librarian collected data on the number of pages in chapters of a book. Interpret the slope and the y-intercept of the linear model. Round the slope to the nearest hundredth.
(1 point)
Responses
For every chapter of a book, there is an average of 1/10 page.
For every chapter of a book, there is an average of 1/10 page.
For every chapter of a book, there is an average of 0.1 page.
For every chapter of a book, there is an average of 0.1 page.
For every chapter of a book, there is an average of 10 pages.
For every chapter of a book, there is an average of 10 pages.
For every chapter of a book, there is an average of 1 page.
The slope of the linear model is 0.1, which means that on average there is an increase of 0.1 page for every additional chapter in the book.
The y-intercept of the linear model represents the starting point of the data, in this case, it would suggest that when there are zero chapters, there are zero pages.
A poll was taken to explore the relationship between the age and support for a candidate in an election. The results of the poll are summarized in the table. How many people above the age 30 are for the candidate?
(1 point)
Responses
40
40
55
55
70
70
95
The number of people above age 30 who are for the candidate is 95.
Find the mean absolute deviation of the following dataset. Round your answer to the nearest tenth.
204, 211, 216, 300, 426, 567, 680
(1 point)
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
The mean absolute deviation is ____
159.1
151
372
72.3
The mean absolute deviation is 159.1.
A meteorologist collected data on a recent snowfall. The meteorologist graphed the data and found the equation of the trend line to be y = 1.7x + 0.1 If the snowfall continues at this pace, use the equation to predict the number of inches of snowfall after 10 hours. Round to the nearest tenth.
(1 point)
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
_______ inches of rainfall
10
17.1
21.4
15
The predicted number of inches of snowfall after 10 hours is 17.1 inches.
Question
Erica sells pottery at fairs every summer. She records the number of items she sells each day. The number of items she sells each day over the course of 8 days is 32, 56, 19, 8, 19, 58, 34, 19. Describe the spread of the number of items Erica sold each day using the mean absolute deviation. (1 point)
Responses
The mean absolute deviation is approximately 50. The difference between the maximum number of items Erica sold in a day and the minimum number of items Erica sold in a day was 50.
The mean absolute deviation is approximately 50. The difference between the maximum number of items Erica sold in a day and the minimum number of items Erica sold in a day was 50.
The mean absolute deviation is approximately 14.4. On average, the number of items Erica sold each day is about 14.4 items from the mean.
The mean absolute deviation is approximately 14.4. On average, the number of items Erica sold each day is about 14.4 items from the mean.
The mean absolute deviation is approximately 14.4. Erica sold within 14.4 items of the mean each day.
The mean absolute deviation is approximately 14.4. Erica sold within 14.4 items of the mean each day.
The mean absolute deviation is approximately 30.6. Erica sold around 31 items each day.
The mean absolute deviation is approximately 14.4. On average, the number of items Erica sold each day is about 14.4 items from the mean.
Interpret the scatterplot by describing any outliers and patterns of clustering.
(1 point)
There are (One, two, zero) ______ clusters and one outlier at point ((4, 62), (62, 4), There is no outlier) ______