Which equation matches the graph? A. y-2=3(x-2) B. y-2=3(x+2) C. y+2=-3(x+2) d. y-2=-3(x-2)
2 answers:
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Answer:
81.2 is the 62th percentile
Step-by-step explanation:
What is the interpretation for a percentile?
When a value V is said to be in the xth percentile of a set, x% of the values in the set are lower than V and (100-x)% of the values in the set are higher than V.
300 observations, there are 186 points less than 81.2. Find the percentile for 81.2.
So
81.2 is the 62th percentile
Answer:
SE=$128.13
Step-by-step explanation:
-Given the sample mean is $34,250 and standard deviation is $2,050 with n=256:
-Standard error is calculated using the formula:
Where s is the sample standard deviation.
#We substitute our values to solve for SE:
Hence, the standard error is $128.13