6+7y+10
-6 -6
7y = 4
7/4
7
Y=1.75
Answer:
0.3 chance of not drawing a blue marble.
Step-by-step explanation:
This problem can be found using the theoretical probability formula.
The formula is: P (desired outcome) = <u># of desired outcomes</u>
total number of outcomes
Now all you have to do is input the numbers into the equation.
P(not drawing a blue marble) = <u>3</u>
10
3/10 is equal to 0.3 as a decimal.
Answer:
a. the less variability it has
Step-by-step explanation:
The standard deviation is a measure of the amount of variation or dispersion of a set of values.
When your standard deviation is big your data is more dispersed.
When your standar deviation is small your mean is a representative index of your data, and there is less variability.
If there was no dispersion of the data (if all your data be the same) then the standard deviation will be 0.
Given:
The quadratic equation is
To find:
The x-intercepts of the given equation.
Solution:
We have,
Splitting the middle term, we get
For x-intercepts, y=0.
Using zero product property, we get
So, the x-intercepts are (0.5,0) and (2,0).
Therefore, the correct option is a.