Answer:
the solution is C. identical
Step-by-step explanation:
slope of parallel lines are the same
5x-x=-2-7
4x=-9
x=2/3 or x=-2/3
Since there are 2 answers, it is not one solution.
A) The empirical rule tells you the probability of being within 1 standard deviation of the mean is 68%.
b) The probability that the sample mean falls within 3 standard deviations* of the mean is 99.7%.
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* The standard deviation of the sample mean is 1/√9 = 1/3 of the standard deviation of an individual sample. Hence the same limits (90-110) now cover 3 standard deviations of the sample mean.
10.x=1
11.3/4y+4 , x=1/5y+1/5
12.x=2
Answer:
Step-by-step explanation:
Given
See attachment for complete question
Required:
Complete step 6
At step 5, we have:
Take LCM
Take square roots of both sides to get step 6
Hence, the missing radicand is: