Regression Models Answers

0 verified answers1 views
1
Free Preview

The table shows the estimated number of bees, y, in a hive x days after a pesticide is released near the hive.

Question illustration
A
y = 9,958(0.972)x
B
y = 0.972(9,958)x
C
y = 9,219x– 150
D
y = –150x + 9,219
2
Free Preview

Marta’s mother shared a funny video of their cat on the Internet. The total number of people who had viewed the video over the first 30 days could be modeled using the function f(x) = 33(1.3)x where x is the number of days the video has been online.

A
190
B
858
C
6,271
D
86,460
3

The table shows the relationship between time spent running and distance traveled.

Question illustration
A
linear, because the r value for the linear model is closest to 1
B
exponential, because the r value for the exponential model is closest to 0
C
linear, because the rate of change between each pair of points is exactly 520
D
exponential, because the rate of change between each pair of points is 1.98
4

The table shows the population of a small town over time. The function P = 10,550(1.1)x models the population x years after the year 2000.

Question illustration
A
1950
B
2005
C
2025
D
2050
5

Janna is making a prediction of the frequency of a key that is 12 keys from middle C.

Question illustration
A
interpolation, because a key that is 12 keys from middle C is within the data set
B
interpolation, because a key that is 12 keys from middle C is outside the data set
C
extrapolation, because a key that is 12 keys from middle C is within the data set
D
extrapolation, because a key that is 12 keys from middle C is outside the data set
6

The data in the table compares x, the number of pages in a chapter, to y, the amount of time, in minutes, spent reading. The function y = 0.86x – 0.09 models the data in the table.

Question illustration
A
15
B
17
C
19
D
21
7

The table shows the wavelength of the sound produced by keys on a piano x keys away from the A above middle C.

Question illustration
A
49.31 cm
B
49.44 cm
C
49.73 cm
D
49.78 cm

Did you find these answers helpful?