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
yarga [219]
3 years ago
8

Suppose that a population parameter is 0.4 and many samples are taken from the population. If the size of each sample is 30, wha

t is the standard error of the distribution of sample proportions?
Mathematics
1 answer:
iren [92.7K]3 years ago
4 0

Answer:0.089

Step-by-step explanation:

You might be interested in
​ What are the zeros of the function?​ f(x)=x2+17x+72
Semmy [17]
In order to find zeroes of a function, we will probably want to use our quadratic formula.

-b±√b^2-4(a)(c)/2a 

If we know our values, we can plug it in. 

Our values:

A=1 (Since there is no number in front of x, it is an assumed 1)
B=17
C=72

Now, We can plug it into our formula.

BE SURE TO PUT PARENTHESIS AROUND ALL TERMS!

-(17)±√(17)^2-4(1)(72)/2(1)

Now we can type it into a calculator! 

When we plug it into the formula. It gives us two real solutions (or zeroes) which are represented as:

-8 & -9.

4 0
3 years ago
(2x-7)-(4x^2+6x-3)+(x^2+4)
masha68 [24]

Answer:

-3x^2-4x

Step-by-step explanation:

Simplify:

\left(2x-7\right)-\left(4x^2+6x-3\right)+\left(x^2+4\right)

=2x-7-\left(4x^2+6x-3\right)+x^2+4

Group same factor:

=-\left(4x^2+6x-3\right)+x^2+2x-7+4

Add :

=-\left(4x^2+6x-3\right)+x^2+2x-3

Apply the distributive law: -(a+b) = -a - b

-\left(4x^2+6x-3\right)=-4x^2-6x+3

=-4x^2-6x+3+x^2+2x-3

Group same factor:

=-4x^2+x^2-6x+2x+3-3

Subtract:

=-4x^2+x^2-6x+2x

Add:

=-3x^2-6x+2x

Group same factor:

=-3x^2-4x

Hence answer = -3x^2-4x

<u><em>~lenvy~</em></u>

8 0
2 years ago
Please help with this problem ASAP!!!!
sdas [7]
I believe the answer is 64?
3 0
3 years ago
Read 2 more answers
The landscaper charges a rate of $40 per hour to plant trees.
Wittaler [7]

Answer:

More info please

Step-by-step explanation:

7 0
3 years ago
What is 18% of 900? (please answer quickly!)
Daniel [21]
162 is the answer. :)
5 0
3 years ago
Other questions:
  • a group of fitness club member lose a combined of 28 kilograms in 1 week .there are approximately 2.2 pounds in 11 kilogram . as
    10·1 answer
  • Complete the following chart to summarize the different ways to prove triangles are congruent
    14·1 answer
  • Find an equation of the line passing through the point (6,2) and perpendicular to −2x−1y=−3
    10·1 answer
  • George uses diagram to help determine 30% of 60. what expression could george used?
    10·2 answers
  • What is 2550 gallons in 30 days in unit rate
    14·1 answer
  • Ben is making salsa.He needs 1/3 cups of chilies for each bach of salsa.Ben has 5/6 cup green chilies.How many baches of salsa c
    7·1 answer
  • Which interval is the solution set to 0.35x – 4.8 &lt; 5.2 – 0.9x? (–∞, –8) (–∞, 8) (–8, ∞) (8, ∞)
    14·2 answers
  • Simplify. Assume that no denominator is equal to zero. (show work) <br> help please!!!!!
    13·1 answer
  • Jordan read 12 books last month. Of all the books, 3/4 were about space. How many books were about space? Write an equation to s
    10·1 answer
  • G(x)=−4x+4, find g(3)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!