The equation b=540−30m gives the balance b (in dollars) that you owe on a drum set after m monthly payments. What is the balance
2 answers:
Answer:
the balance after 9 monthly payments is, $270
Step-by-step explanation:
Given the equation:
....[1]
where,
b represents the balance in dollars that you owe on a drum set after m monthly payment.
We have to find the balance after 9 monthly payments
⇒ m = 9 months
Substitute the given values in [1] we have;
⇒
Therefore, the balance after 9 monthly payments is, $270
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Answer:
Range = 2460 dollars, Variance = 516414.6 , Standard deviation = 718.6199 dollars . There are two outliers and they are likely to have much of an effect on the measures of variation.
Step-by-step explanation:
The smallest value in the sample data is min = 50 dollars and the largest value is max = 2500 dollars, therefore, the range is Range = max - min = 2500 - 40 = 2460 dollars. On the other hand, the formula to compute the sample variance is where
is the sample mean, n is the sample size and the
are the sample values. In this case the sample variance is
= 516414.6
, the sample standard deviation is defined as the squared root of the sample variance, so, the sample standard deviation is s = 718.6199 dollars. There are two outliers because 1750 dollars and 2500 dollars are very different compared to the other values, these two numbers are very large and they are likely to have much of an effect on the measures of variation because these measures are sensible to outliers, they are no robust measures.