Which function best represents the data in the scatter plot?

SOLUTION AT Australian Expert Writers

Question 1 (Multiple Choice Worth 4 points)
(06.05)<object:standard:macc.912.s-id.2.5>
Susie collected data on the favorite type of drink of the students of two grades. The table below shows the relative frequencies of rows for the data collected:
Cola
Juice
Milk Shake
Total
Grade 8
0.50
0.10
0.40
1.00
Grade 9
0.53
0.20
0.27
1.00
Total
0.36
0.32
0.32
1.00
Based on the data, which statement is most likely correct?
Question 2 (Multiple Choice Worth 4 points)
(06.07)<object:standard:macc.912.s-id.3.9>
Two statements are shown below:
It is a cause and effect relationship between two events.
It is a statistical measure, expressed as a number, which describes the size and direction of a relationship between two or more variables.
Which of the following describes the statements?
Question 3 (Multiple Choice Worth 4 points)
(06.06)<object:standard:macc.912.s-id.2.6b>
The graph below shows some scatter points:
Which statement best describes how including the points (3.5, 0.8), (4, 0.5), (4.5, 0.2), (5, 0.2), (5.5, 0.2) and (6, 0.2) would affect the graph?
Question 4 (Multiple Choice Worth 4 points)
(06.07)<object:standard:macc.912.s-id.3.8>
The graph below plots the values of y for different values of x:
Which correlation coefficient best matches the data plotted on the graph?
Question 5 (Multiple Choice Worth 4 points)
(06.01)<object:standard:macc.912.s-id.1.1>
The following data set shows the pulse rate of some cattle at a farm:
65, 68, 69, 67, 69, 68, 65, 69, 65, 68, 67, 69, 68, 67, 67, 69
Which dot plot best represents the data?
Question 6 (Multiple Choice Worth 4 points)
(06.07)<object:standard:macc.912.s-id.3.9>
Sarah described the following situation:
When fertilizer was added to one plant and nothing was added to another plant, there was a noticeable difference in the color of the leaves of the plants.
Which of the following best describes the situation?
Question 7 (Multiple Choice Worth 4 points)
(06.02)<object:standard:macc.912.s-id.1.2>
Two groups of students were asked how far they lived from their school. The table below shows the distances in miles:
Group A (distance in miles)
1
1.5
3
3.2
2.8
1.5
1.8
2.5
2.2
Group B (distance in miles)
2
2.5
3.2
3
1.8
2.4
3
1.5
1.8
Which statement best compares the mean distances for the two groups?
Question 8 (Multiple Choice Worth 4 points)
(06.06)<object:standard:macc.912.s-id.2.6>
The scatter plot below plots the math scores and IQs of some students in a class:
Based on the plot, which conclusion is correct?
Question 9 (Multiple Choice Worth 4 points)
(06.02)<object:standard:macc.912.s-id.1.1>
The following data shows wind speed in a city, in miles per hour, on consecutive days of a month:
9.4, 9.2, 9.7, 9.8, 9.4, 9.7, 9.6, 9.3, 9.2, 9.1, 9.4
Which box plot best represents the data?
Question 10 (Multiple Choice Worth 4 points)
(06.07)<object:standard:macc.912.s-id.3.7>
The graph shows the girth of the trunk of a fir tree after different numbers of years:
What does the y-intercept of the graph represent?
Question 11 (Multiple Choice Worth 4 points)
(06.06)<object:standard:macc.912.s-id.2.6>
The scatter plot below shows the length of a spring (y) for different forces applied on it (x):
Based on the scatter plot, what was the approximate kilogram force applied when the elongation was 12.3 cm?
Question 12 (Multiple Choice Worth 4 points)
(06.03)<object:standard:macc.912.s-id.1.3>
The table below shows the number of people of different age groups who participated in a talk show:
Age Group
16 to 20
21 to 25
26 to 30
31 to 35
36 to 40
41 to 45
46 to 50
51 to 55
56 to 60
Number of Participants
3
3
32
30
30
35
36
34
33
Which statement best describes the histogram for these data?
Question 13 (Multiple Choice Worth 4 points)
(06.07)<object:standard:macc.912.s-id.3.8>
The table below shows the values of y for different values of x:
x
7
8
9
10
11
12
13
y
3
5
7
9
10
13
14
The correlation coefficient for the data is 0.9976. Which statement is true about the data in the table?
Question 14 (Multiple Choice Worth 4 points)
(06.06)<object:standard:macc.912.s-id.2.6>
The table below shows the air pressure in pounds per square inch at different altitudes in thousand feet:
Altitude (thousand feet)
5
10
15
20
25
30
35
40
45
Air pressure (pounds per square inch)
12.4
10.2
7
6.2
5.2
4.2
3.4
2.6
2.0
Which scatter plot best represents the data in the table?
Question 15 (Multiple Choice Worth 4 points)
(06.03)<object:standard:macc.912.s-id.1.3>
A box plot was made to represent the number of matches won by 14 participants in a tennis tournament. The box plot had the box shifted to the right so that the left tail was much longer than the right tail. Based on the box plot, which conclusion is correct?
Question 16 (Multiple Choice Worth 4 points)
(06.01)<object:standard:macc.912.s-id.1.1>
The following table shows the number of hours some students of a class listen to music each day:
Student
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
Hours
6.5
1
2.5
2.5
4
1
0.5
4.5
5
1
1
2
1.5
1.5
2
Which histogram best represents the data?
Question 17 (Multiple Choice Worth 4 points)
(06.05)<object:standard:macc.912.s-id.2.5>
Annie found that 57 students in her school knew French and 23 of those students knew Spanish, as well. There were 11 students who did not know French but knew Spanish. There were 4 students who knew neither French nor Spanish. Which table best summarizes the data collected by Annie?
Knew Spanish
Did not know Spanish
Total
Knew French
57
34
91
Did not know French
11
4
15
Total
68
38
106
Knew Spanish
Did not know Spanish
Total
Knew French
12
34
46
Did not know French
11
4
15
Total
23
38
61
Knew Spanish
Did not know Spanish
Total
Knew French
23
34
57
Did not know French
11
4
15
Total
34
38
72
Knew Spanish
Did not know Spanish
Total
Knew French
23
34
57
Did not know French
4
11
15
Total
27
45
72
Question 18 (Multiple Choice Worth 4 points)
(06.03)<object:standard:macc.912.s-id.1.3>
The following data show the prices of different types of outfits at a store:
$25, $27, $28, $26, $25, $27, $25, $27, $26, $28, $29
Which statement is correct about the box plot for the above data?
Question 19 (Multiple Choice Worth 4 points)
(06.06)<object:standard:macc.912.s-id.2.6c>
The function below shows the distance y, in miles, of a swimmer from a beach at different times x:
y = 100 – 8x
Which scatter plot best represents the function?
Question 20 (Multiple Choice Worth 4 points)
(06.06)<object:standard:macc.912.s-id.2.6b>
Graph 1 shows the sales of ice cream, in dollars, at Harry’s store for different values of average monthly temperature. Graph 2 shows some additional data points.
If the points shown on graph 2 are included on graph 1, how will the line of best fit for graph 1 be affected?
Question 21 (Multiple Choice Worth 4 points)
(06.07)<object:standard:macc.912.s-id.3.7>
The function below models the correlation between the number of hours a plant is kept in sunlight (x) and the height (y), in mm, to which it grows:
y = 4 + 2x
What does the slope of this function represent?
Question 22 (Multiple Choice Worth 4 points)
(06.05)<object:standard:macc.912.s-id.2.5>
Out of the 150 students at a summer camp, 72 signed up for canoeing. There were 23 students who signed up for trekking, and 13 of those students also signed up for canoeing.
Use a two-way table to organize the information and answer the following question:
Approximately what percentage of students signed up for neither canoeing nor trekking?
Question 23 (Multiple Choice Worth 4 points)
(06.02)<object:standard:macc.912.s-id.1.2>
Two groups of students were asked how many pets they had. The table below shows the numbers for each group:
Company A
1
2
1
1
3
5
4
2
3
Company B
3
2
3
2
2
2
1
1
2
Based on the table, which of the following is true?
Question 24 (Multiple Choice Worth 4 points)
(06.06)<object:standard:macc.912.s-id.2.6a>
The scatter plot shows the number of DVDs Aaron sold in different months:
What is the approximate predicted number of DVDs Aaron will sell in the 13th month?
Question 25 (Multiple Choice Worth 4 points)
(06.06)<object:standard:macc.912.s-id.2.6c>
A company pays its employees a fixed base salary and a commission based on sales. The scatter plot shows the total earning of an employee of the company (y) based on sales (x):
Which function best represents the data in the scatter plot?

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