X = 2 y = 3 z = 4
2 answers:
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Answer:
And the margin of error with this one:
Step-by-step explanation:
Assuming that the parameter of interest is the sample mean . And we can estimate this parameter with a confidence interval given by this formula:
(1)
For this case the confidence interval is given by (1.9, 3.3)
Since the confidence interval is symmetrical we can estimate the sample mean with this formula:
And the margin of error with this one:
Answer:
Exponential growth functions are:
Exponential decay functions are:
Step-by-step explanation:
Given:
An exponential function is of the form , where,
.
Now, if a > 0 and b > 1, then the exponential function represent exponential growth.
If a > 0 and 0 < b < 1, then the exponential function represent exponential decay.
Let us check each function now.
Option 1:
Here,
As 1.08 > 1, the function is exponential growth.
Option 2:
Here,
As 0.5 < 1, the function is exponential decay.
Option 3:
Here,
As 0.8 < 1, the function is exponential decay.
Option 4:
Here,
As 3 > 1, the function is exponential growth.
Option 5:
Here,
As 1.07 > 1, the function is exponential growth.
Option 6:
Here,
As 0.93 < 1, the function is exponential decay.