What are the like terms in the expression?
2 answers:
Answer:
The answer is "Option A".
Step-by-step explanation:
- Like terms are also known as the same variables that are correlated with the same value. This primarily differs from empirical experiences. It includes other definitions, which are condensed and simplified to make algebraic concepts simpler.
- In the given expression "
" there are four terms, in which -9 and 2 are like terms, because both are integers, and others are unlike terms, that's why other choices were incorrect.
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The estimated standard error for the sample mean difference is 2.5 .
According to the question
A repeated-measures study comparing two treatments
n = 4
MD(mean difference) = 2
SS (sum of square) = 75
Now,
error for the sample
Formula for standard error
by substituting the value
S² = 25
S = 5 (s is never negative)
Standard error of the estimate for the sample mean difference
As
The standard error of the estimate is the estimation of the accuracy of any predictions.
The formula for standard error of the mean difference
standard error of the mean difference =
standard error of the mean difference =
standard error of the mean difference = 2.5
Hence, the estimated standard error for the sample mean difference is 2.5 .
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