Answer:
The point estimate is 0.45.
The 95% error margin is 0.042 = 4.2 percentage points.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
The margin of error is given by:
Point estimate
We have that 
So the point estimate is:
95% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
Error margin:
The 95% error margin is 0.042 = 4.2 percentage points.
A dilation means that a shape is expanded or shrunk by a scale factor. The scale factor is 4, so all the points are multiplied by 4 to reflect this expansion.
A reflection over the y-axis means that the y-values in the points change their sign from positive to negative, and vice versa.
Therefore, the points will become the following:
A''(12,-12), B''(-4, -12), C''(-16,-4), D''(0, -4)
This new shape will be similar to the original shape, since it shares the same shape, but not the same size.
The answer is A.
Answer:
Your answer is 1/2.
Step-by-step explanation:
So, what you need to do first is look at your graph. The odds of you landing o a number greater than six would be 3/6. The odds of landing on purple is 2/6. The other numbers you didn't use will also be added. The odds of the other numbers are 2/6.
Now make an equation.
3/6 + 2/6 - 2/6
Solve.
5/6 - 2/6 =
Answer.
3/6 or 1/2.
Have a nice day!
we are given
martians =4
plutonians =3
jupiterians=5
so, total number of seats =4+3+5=12
number of seating arrangement for martians is 4!
number of seating arrangement for plutonians is 3!
number of seating arrangement for jupiterians is 5!
total number of seating arrangement is 12!
so, we get
possible seating arrangements are
.............Answer
6= 2D/5
5 x 6 = 30
30/2D
15=D
