Answer:
C
Step-by-step explanation:
subtract and then divide
Answer:
The cost of each notebook is $3 and the cost of each thumb drive is $14.
Step-by-step explanation:
In order to solve this question we will attribute variables to the notebook and thumb drive. The price of a notebook we will call "x" and the price of a thumb drive will be "y". We now can create equations that represents the total amount spent by each person on these items. To do that we need to take the amount of each item that was bought and multiply it by it's price.
For Troy:
4*x + 6*y = 96
For Lisa:
2*x + 4*y = 62
We now have a system of equations and we can solve them by isolate one of he variables in one of the equations and using that value on the other. Using the second equation we have:
2*x + 4*y = 62
4*y = 62 - 2*x
y = 15.5 - 0.5*x
Using this expression on the first equation:
4*x + 6*(15.5 - 0.5*x) = 96
4*x + 93 - 3*x = 96
x = 96 - 93 = 3
We can now find the value of y:
y = 15.5 - 0.5*(3) = 14
The cost of each notebook is $3 and the cost of each thumb drive is $14.
Answer:
B)
Step-by-step explanation:
In statistics, an outlier is a data point that differs significantly from other observations.
This can happen because of different reasons: it may be due to variability in the measurement or it may indicate an actual experimental error. If it is an actual experimental error then it can create problems when doing the statistical analysis.
A) We can say that this is true, the outliers are observed values far from the other data, however we can make a much deeper analysis of this.
B) This is the right answer, since we don't know what is really causing the outlier, we need to take a closer look to see if they are just mistakes (and therefore be removed). If they are not mistakes we need to do the analysis with and without them to reach correct conclusions.
C) this is wrong because although the part of the histogram is true. It is not true that they should be ignored.
d) The outliers differ significantly from the other data but this doesn't make them the minimum and maximum values in a data set and therefore they should not be treated as such.
Therefore, the correct answer is B)
Answer:
Not similar -- shape B has been streched, these shapes are neither similar or congruent.
Step-by-step explanation:
