An experiment is run. The mass of an object is recorded over
time.
Time (min)
Mass...
An experiment is run. The mass of an object is recorded over
time.
Time (min)
Mass (g)
10
34
25
31
34
28
36
18
37
9
Plot the points in the grid below.
Clear All Draw: Dot
Using your calculator, run a linear regression to determine the
equation of the line of best fit. Round to two decimal places, use
x for the variable.
y=
Using your equation, estimate the mass of the object at 11
minutes.
grams
The following data set represents students' scores on a
quiz. The best possible score was a...
The following data set represents students' scores on a
quiz. The best possible score was a 20. Use the data to generate
answers to the next eight (8) questions (Q28-Q35).
4, 4, 10, 12, 2, 20, 5, 12, 12, 5, 9, 9, 20, 13, 6, 6,
15, 15, 15, 15
What is the mean? (Round all answers for this question to the
hundredths place - X.XX)
What is the median?
What is the mode?
What is the range?
What is...
Find the equation of the regression line for the given data.
Then construct a scatter plot...
Find the equation of the regression line for the given data.
Then construct a scatter plot of the data and draw the regression
line. (The pair of variables have a significant correlation.)
Then use the regression equation to predict the value of y for each
of the given x-values, if meaningful. The table below shows the
heights (in feet) and the number of stories of six notable
buildings in a city. Height, x: 758, 621, 518, 510, 492, 483
Stories,...
Given the following sample data set (30 quiz scores), answer
the following questions below.
1, 3,...
Given the following sample data set (30 quiz scores), answer
the following questions below.
1, 3, 3, 3, 4, 4, 5, 6, 6, 7, 9, 9, 9,
9, 10, 11, 12, 14, 16, 17,
17, 17, 18, 19, 21, 23, 23, 26, 26,
27,
18a. Complete
the grouped frequency
distribution. (6
points)
Q20. Q21. Q22. Q23. Q24. Q25.
Interval Real
limits Midpoint f Cf r% c%
1-5
6-10
11-15
16-20
21-25
26-30
Q26.
18b. What score is associated
with the 90th
percentile? (1
point)
Q27.
18c. What percentage of scores
fall between (and including)...
A random sample of 9 biology students produced the following
data,
first test Score, x
second...
A random sample of 9 biology students produced the following
data,
first test Score, x
second test Score, y
22
30
53
37
67
10
69
38
68
21
91
82
98
28
46
36
16
27
where x measures the first test score and y measures the second
test score. What is the estimate of the y = a x + b regression
slope coefficient?