I guessed Andy was 32 years old, but he's actually 38 years old. What is my percent of error?
2 answers:
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Answer:
0.025 is the standard error of mean.
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 100
Sample mean = 13 psi
Population standard deviation = 0.25 psi
We have to find the standard error of the mean.
Formula:
Standard error =
0.025 is the standard error of mean.
Answer:
parallel
Step-by-step explanation:
Parallel lines have equal slopes.
Calculate the slopes m using the slope formula
m =
with (x₁, y₁ ) = (- 1, 2) and (x₂, y₂ ) = (2, 3)
m = =
Repeat with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (3, 1)
m = =
Since slopes are equal then parallel