Answer:
1) Normal distribution-------------- A distribution that takes on the shape of a bell curve.
2) Standard Normal distribution--------A normal distribution with a mean 0 and a standard deviation of 1.
3) deviation----------------- difference between any value and the mean of
the set.
4) frequency distribution--------- organizes data into categories called
classes.
5) range---------- difference between the smallest term in the data and
the largest term in the data set.
6) standard deviation----------- square root of variance.
7) Variance------------ square of the standard deviation.
8) z-score------------- deviation of a value x from the mean of the sample
divided by the standard deviation.
Answer:
x = 9, Angles are 54°
Step-by-step explanation:
First, we need to find x:
7x-9 = 5x+9
+9 +9
7x = 5x+18
-5x -5x
2x = 18
x = 9
Now, we plug our x value in to find our angles.
5(9) + 9 = 54
Angle B = 54°
7(9) - 9 = 54°
Angle E = 54°
(angles are the same due to AAA property)
Answer:
Step-by-step explanation:
Given
The attached graph
Required
The constant rate of change (m)
This is calculated as:
From the graph, we have:
So, the formula becomes:
Suppose that you use the health club x time
When you will use it charged will=12+9=21
Equating both side
300+6x=21x
300=15x
X=20 member
Answer:
3
Step-by-step explanation:
5-2x=-1
(x is your number)
5-5=0
-1-5=-6
-2x=-6
-2x/-2=x
-6/-2=3
x=3