1: 1/2
2: about 1 1/2 hours
Answer: The width of the confidence interval is 8%.
Step-by-step explanation:
- The width of the confidence interval is twice the margin of error.
Given : A 90 percent confidence interval to estimate a population proportion was calculated from a Sample proportion = 18 % .
Margin of error = 4 %.
Then , the width of the confidence interval = 2 x (Margin of error)
= 2 x (4%)
= 8%
Hence, the width of the confidence interval is 8%.
Alright, lets get started.
Laura's paper airplane flew =
It is farther than Max's plane flew =
So the equation for the distance for Max's paper plane flew will be =
Solving the above equation
These are two fractions in subtraction, so we need to make common denominator
So, max's paper airplane flew = feet : Answer
Hope it will help :)
The given problem is very confusing since it was copy
pasted directly from the source so the equations look scrambled and plus it was
one words. After my own translation, I believe the given numbers are:
4 ⋅ 10^6
and
1 ⋅ 10^4
The symbol ⋅ means
that the two numbers are multiplied while the symbol ^ means an exponent of.
Now we are asked to find how much the 1st number is larger than the
2nd number. To solve this, we simply have to divide the bigger
number by the smaller number. Since 4 ⋅ 10^6
has bigger exponent than 1 ⋅ 10^4
then it is the bigger number.
Ratio = 4 ⋅ 10^6 /
1 ⋅ 10^4
Ratio = 4 ⋅ 10^2 =
400
Therefore 4 ⋅ 10^6
is 400 times bigger than 1 ⋅ 10^4.
Answer:
<span>400 times</span>