The art teacher bought 1,500 beads for a new art project. 25% of the beads are red, 35% of the beads are green, the rest of the
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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.
Answer:
Step-by-step explanation:
<em>Since equations are not listed, i will simply figure out the correct answer.</em>
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Profit is Income MINUS Cost.
The cost is a fixed cost of 2,100 per month.
Also a variable cost of 70 per unit (x), if x units sold, then variable cost would be "70x"
Total Cost = 2100 + 70x
Now, the income is from sales of each unit. Each unit sells for $84 and if x units sold, company's income would be:
84x
So, profit will be:
Profit = Income - Cost
Profit = 84x - (2100 + 70x)
Profit = 84x - 2100 - 70x
Profit = 14x - 2100
We can write the equation as: