The mean is affected by outliers.
- TRUE - the mean is the average, so each value affects it.
The mean is always a more accurate measure of center <span>than the median.
- FALSE: Although the mean gives a better idea of the values, the center for Normal distributions is described using the median value.
</span>Removing an outlier from a data set will cause the standard deviation to increase.
- FALSE: Removing an outlier from a data set makes the data more Normal, reducing the standard deviation, not increasing it.
If a data set’s distribution is skewed, then 95% of its values will fall between two standard deviations of the mean.
- FALSE: the 68-95-99.9 rule works for a bell-curve distribution, a.k.a. a Normal distribution, not a skewed distribution.
If a data set’s distribution to skewed to the right, its mean will be larger than its median.
- TRUE: the mean is always pulled in the direction of the skewness.
Step by step explanation: I'm Sorry this answer is late but here! I don't really get number 2 I'm sorry.
question 1
x=-y
2x-y=-6
x=-y
2(-y)-y=-6
x=-y
y=2
x=-(2
y=2
(-2,2)
x=-2,
y=2
Question 2
-2x + 6y = 30
-2x + 6y + -6y = 30 + -6y
-2x + 0 = 30 + -6y
-2x = 30 + -6y
x = -15 + 3y
x = -15 + 3y
Answer:
108 meters squared or m^2
Step-by-step explanation:
* means multiply
15 is probably hypotenuse because its the longest
12 and 9 are probably base and height
area = base * height
area = 12 * 9
area = 108
Answer:
C
Step-by-step explanation:
Answer:
Here:
Step-by-step explanation:
x is how much she spends, y is how much she saves.
for c, you can write:
y = 300, x = 0
y = 200, x = 100
y = 100, x = 200
y = 50, x = 250
y = 1, x = 299
x and y are variables because they can vary depending on one or the other.
The formula is just a relation between x and y. For example, another way can be that I give you $10 and you buy me 5 bottles of water. But if I give you $20, you will buy 10. The amount I give you and the number of bottles you buy me are both dependent and they have a relationship no matter what value they are. And the relationship is described by the function in the question.