1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
forsale [732]
2 years ago
5

115 divided by 356................

Mathematics
2 answers:
Airida [17]2 years ago
8 0

Answer:

0.32        

:)

brainliest greatly appretiated

egoroff_w [7]2 years ago
4 0
I recommend using Photomath :)

You might be interested in
Acording to what the harder you pedal a bicycle thr faster it will go
Tems11 [23]
Acording to Newton's 3 Laws
4 0
3 years ago
Read 2 more answers
A poll in 2017 reported that 705 out of 1023 adults in a certain country believe that marijuana should be legalized. When this p
just olya [345]

Answer:

1. d. (0.652, 0.726)

2. b. (0.661, 0.718)

a. The margin of error of a 90​% confidence interval will be less than the margin of error for the 95​% and 99​% confidence intervals because intervals get wider with increasing confidence level.

Step-by-step explanation:

Data given and notation  

n=1023 represent the random sample taken in 2017    

X=705 represent the people who thinks that believe that marijuana should be legalized.

\hat p =\frac{705}{1023}=0.689 estimated proportion of people who thinks that believe that marijuana should be legalized.

z would represent the statistic in order to find the confidence interval    

p= population proportion of people who thinks that believe that marijuana should be legalized.

Part 1

The confidence interval would be given by this formula

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}

For the 99% confidence interval the value of \alpha=1-0.99=0.01 and \alpha/2=0.005, with that value we can find the quantile required for the interval in the normal standard distribution.

z_{\alpha/2}=2.58

And replacing into the confidence interval formula we got:

0.689 -2.58 sqrt((0.689(1-0.689))/(1023))=0.652

0.689 + 2.58sqrt((0.56(1-0.689))/{1023))=0.726

And the 99% confidence interval would be given (0.652;0.726).

We are 99% confident that about 65.2% to 72.6% of people  believe that marijuana should be legalized

d. (0.652, 0.726)

Part 2

The confidence interval would be given by this formula

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}

For the 95% confidence interval the value of \alpha=1-0.95=0.05 and \alpha/2=0.025, with that value we can find the quantile required for the interval in the normal standard distribution.

z_{\alpha/2}=1.96

And replacing into the confidence interval formula we got:

0.689 - 1.96((0.689(1-0.689))/(1023))=0.661

0.689 + 1.96 ((frac{0.56(1-0.689))/(1023))=0.718

And the 95% confidence interval would be given (0.661;0.718).

We are 95% confident that about 66.1% to 71.8% of people  believe that marijuana should be legalized

b. (0.661, 0.718)

Part 3

Would be lower since the quantile z_{\alpha/2} for a lower confidence is lower than a quantile for a higher confidence level.

The margin of error of a 90​% confidence interval will be less than the margin of error for the 95​% and 99​% confidence intervals

If we calculate the 90% interval we got:

For the 90% confidence interval the value of \alpha=1-0.90=0.1 and \alpha/2=0.05, with that value we can find the quantile required for the interval in the normal standard distribution. The quantile for this case would be 1.64.

And replacing into the confidence interval formula we got:

0.689 - 1.64 ((0.689(1-0.689))/{1023))=0.665

0.689 + 1.64 ((0.56(1-0.689))/(1023))=0.713

And the 90% confidence interval would be given (0.665;0.713).

We are 90% confident that about 66.5% to 71.3% of people  believe that marijuana should be legalized.

The intervals get wider with increasing confidence level.

So the correct answer is:

a. The margin of error of a 90​% confidence interval will be less than the margin of error for the 95​% and 99​% confidence intervals because intervals get wider with increasing confidence level.

6 0
3 years ago
What is 50% of 500,000?
ki77a [65]

Answer:

250,000

Step-by-step explanation:

1/2 or 50% of 500,00 is 250,00

8 0
3 years ago
Read 2 more answers
Find the roots of the equation x^3-3x^2+x+5
leonid [27]
First observe that x=-1 is a root of the equation. Use long division to divide x^3-3x^2+x+5 by x+1, we find that (x^3-3x^2+x+5)/(x+1)=(x^2-4x+5). Now we need to find the roots of x^2-4x+5.
x^2-4x+5=0, 
x^2-4x+4=-1,
(x-2)^2=i,
x-2=i or -1,
x=2+i or 2-i. 
The three roots are 2+i, 2-i, -1.
5 0
2 years ago
Draw and identify the coordinates of the image of the figure after a 90° counterclockwise rotation about the origin. ​
Galina-37 [17]

Answer:

5! HOPE I HELPED

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Ou have a wireless phone plan that costs $25 per month. You must als
    10·1 answer
  • What are the solutions to 2(x- 7)^2 = 32?
    8·1 answer
  • Which is the adjectival phrase in the sentence? Those old patio chairs on the deck are beginning to rust.
    8·2 answers
  • A car is driven on a straight track such that its displacement from the starting point is given as x = t + 2t2. What is the aver
    8·1 answer
  • Help me please!!!!!!!!!
    8·1 answer
  • Which of the following ordered pairs represents the x-intercept of the equation y = 2x - 8?
    11·2 answers
  • Write -v180 in simplest radical form.
    5·2 answers
  • Find three consecutive odd integers such that the sum of the​ first, two times the second and three times the third is 82.
    9·2 answers
  • Samantha surveyed 500 of the students in her school about their favorite color.
    9·1 answer
  • 20) The volume of a cone is 1871 cubic feet. If the height of the cone is 6 ft, what is the radius of the cone? (V =
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!