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
erica [24]
3 years ago
15

Suppose that a population parameter is 0.7 and many samples are taken from the population. If the size of each sample is 50, wha

t is the standard error of the distribution of sample proportions? O A. 0.005 OB. 0.089 O C. 0.065 O D. 0.109​
Mathematics
1 answer:
egoroff_w [7]3 years ago
4 0

Answer:

0.005

Step-by-step explanation:

To get the standard deviation of the sample proportion, we will use this formula - std = √p (1 - p) / n Replace the variables with the given values, then simplify. std

√ 0.7 ×(1 - 0.7) / 50

0.83660027 × 0.3/50

= 0.00501960162

You might be interested in
James went out for. a long walk . he walked 3/4 mile and then sat down to take rest. then walked 1/8 of a mile how far did he wa
Karo-lina-s [1.5K]

change 3/4 to 6/8 and add 6/8 and 1/8 to get 7/8

he walked 7/8 miles in total :)

6 0
3 years ago
Simplify the expression:z2-z(z+3)+3z
n200080 [17]
z^2-z(z+3)+3z=z^2-z\cdot z-z\cdot3+3z=z^2-z^2-3z+3z=0
8 0
4 years ago
Which statement best describes how to determine whether f(x) = 9- 4x4 is an odd function?
vitfil [10]

Answer:

Option C.

Step-by-step explanation:

Note: In the given function the power of x should be 2 instead of 4, otherwise all options are incorrect.

Consider the given function is

f(x)=9-4x^2

If f(-x)=f(x), then f(x) is an even function.

If f(-x)=-f(x), then f(x) is an odd function.

Now, substitute x=-x in the given function.

f(-x)=9-4(-x)^2

f(-x)=9-4(x)^2

f(-x)=f(x)

So, the given function not an odd function. It means it is an even function.

To check whether the given function is odd, we have to determine whether 9-4(-x)^2 is equivalent to -(9-4(x)^2).

Therefore, the correct option is C.

6 0
3 years ago
Guided Practice
elena-s [515]

Answer:

see below

Step-by-step explanation:

The experimental probability of heads is

P( heads) = 28/50 = 14/25

The theoretical probability is

P (heads) =1/2

Getting a common denominator for the experimental

25/50

comparing the experimental and the theoretical

28/50 > 25/50

experimental > theoretical

4 0
3 years ago
5, 10, 12, 4, 6, 11, 13, 5<br> calculate the median <br> show your work
Zinaida [17]

First you want to organize it from least to greatest: 4, 5, 5, <em>6, 10</em>, 11, 12, 13

Then look for the one in the middle. But oh wait there are 2 so you need to add 6 and 10 then divide it by 2 to get a median of 8.

A song I learned back then is this I don't know who it is by though: Mode, mode, mode is the most, Average is the mean.Median, median, median, median, The number in between.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which function increases at a faster rate on 0 to infinity, f(x)=x^2 or g(x)=2^x
    12·1 answer
  • ...........................
    7·1 answer
  • Suppose a manufacturer finds that 95% of their production is normal but the final 5% has one or more flaws. Each flawed good has
    15·1 answer
  • Point E is located at (2, −3) and point F is located at (−2, −1). Find the y value for the point that is 3 over 4 the distance f
    10·1 answer
  • 17. Segment MN is drawn in the coordinate plane. Point M has coordinates (13,9) and the midpoint of MN is the point (4.4). What
    13·1 answer
  • The function F(x) = 2x/x+3 is an example of a rational function.<br><br><br> True<br> False
    9·1 answer
  • Can someone explain me problem #5 please? Thanks
    8·1 answer
  • Which of these is another way to show the number 4.215?
    15·1 answer
  • When constructing the centroid of a triangle, you need to find the intersection of all three of which type of line?
    13·1 answer
  • A point goes through the origin and has a slope of 3. What is the equation of the line?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!