Answer:
3/4
Step-by-step explanation:
1/4 * 3 = 3/4
This is a fraction, not a mixed number
Answer:
3
Step-by-step explanation:
It seems like your question is not complete.
So I will asume that it is like the one in the image.
But probably the answer is not 3 if the range is different from (1-2), eventhough, you just have to follow the same steps.
Answer:
Case a Case b
margin of error 0.0216 0.0231
Interval estimate (0.7016 , 0.6795) (0.5031 , 0.4569)
margin of error is not same in both cases.
Step-by-step explanation:
a
At 95% confidence interval the interval estimate of number of 20 year old drivers in year A can be computed as
p' ± z
= 0.68 ± 1.96
= 0.7016 , 0.6795
the margin of error can be written as
z
= 1.96 
= 0.0216
b
At 95% confidence interval the interval estimate of number of 20 year old drivers in year B can be computed as
p' ± z
= 0.48 ± 1.96
= 0.5031 , 0.4569
the margin of error can be written as
z
= 1.96
= 0.0231
c
Sample size is same in case A and B but proportion is different in both cases so margin of error is different in both cases
Answer:

Step-by-step explanation:
Given the quadratic equation as:

Let us put
for simplicity of the equation:
Now, the equation becomes:

Now, let us try to solve the quadratic equation:

So, the solution to the given trigonometric quadratic equation is:

and

Let us try to find the values of
in the interval
.
can have a value equal to
in 1st and 2nd quadrant.
So,
can be

For
,

So, the answer is:

Answer:
A
23/7 times 23/7
Step-by-step explanation: