Which constants could each equation be multiplied by to eliminate the x-variable using addition in this system of equations? 2 x
2 answers:
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Answer:
The probability is
Step-by-step explanation:
From the question we are told that
The mean mileage of a tire is
The standard deviation is
The sample size is n = 209
Generally the standard error of mean is mathematically represented as
=>
=>
Generally the probability that the sample mean would differ from the population mean by less than 199 miles is mathematically represented as
=>
=>
=>
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From the z table the area under the normal curve to the left corresponding to 1.11 and -1.11 is
and
So
=>
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