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
Flauer [41]
3 years ago
10

Carmela randomly selected 65 stamps from a stamp collection. Eleven of these were commemorative stamps. What is the interval est

imate for the proportion of commemorative stamps in the entire collection if the sampling method had a margin of error of ±0.025?
Mathematics
1 answer:
Olenka [21]3 years ago
3 0
Since there is no mean, we need to first get the probability:
p = 11/ 65 = 0.1692
This will make it easier to compute for the interval estimate. Interval Estimate = probability ± margin of error
upper limit = 0.1692 + 0.025 = 0.1942

lower limit = 0.1692 - 0.025 = 0.1442
So the interval estimate is 0.1442 < x < 0.1942
You might be interested in
Simplify the expression:<br> 4(5 – 2w) =
sergey [27]

Answer:20-8w

Step-by-step explanation:

4x5 is 20

4x2w= 8w

5 0
3 years ago
Quiz<br>Banyak susunan kata dari 'Indonesia' adalah?​
Evgen [1.6K]

Answer:

hope it's help you ok have a good day

4 0
3 years ago
Solve the equation by factoring: x2 − 7x + 12 = 0
Gnoma [55]

Answer:

x = 3 . . . or . . . x = 4

Step-by-step explanation:

The factored form is ...

(x -3)(x -4) = 0

The zero product rule tells you the solutions are the values of x that make the factors be zero:

x = 3

x = 4

_____

Comment on factoring

When the leading coefficient is 1, the coefficient of the x-term is the sum of the constants in the binomial factors, and the constant term is their product. You can see this by multiplying out the generic case:

(x +a)(x +b) = x^2 +(a+b)x + ab

What this means is that when you're factoring, you're looking for factors of the constant that add up to give the coefficient of the x-term. Here, the x-term is negative and the constant is positive, so both factors will be negative.

12 = -1×-12 = -2×-6 = -3×-4

The sums of these factor pairs are -13, -8, -7. Clearly, the last pair of factors of 12 will be useful to us, since that sum is -7. So, the binomial factors of our equation are ...

(x -3)(x -4) = 0

___

If the leading coefficient is not zero, the method of factoring is similar, but slightly different. Numerous videos and web sites discuss the method(s).

7 0
3 years ago
Aditi can walk 1.7 miles in half an hour. At the same constant speed, how many hours would it take her to walk 17 miles?
blondinia [14]

Answer:

It takes aditi 5 hours to walk 17 miles.

Step-by-step explanation:

First, find her speed in miles per hour.

1.7 miles in half an hour.

1.7 * 2 = 3.4

3.4 miles per hour.

To find the time, use the distance formula.

Distance = rate * time

17 = 3.4 * time

17/3.4 = time

5 = time

8 0
3 years ago
Which pairs of rectangles are similar polygons?<br> Select each correct answer.
iragen [17]

Answer:

The bottom two

Step-by-step explanation:

[] Similar beings their sides have equivalent ratios to each other

[] See attached

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

8 0
3 years ago
Other questions:
  • How can you show lines l and m are parallel?
    12·1 answer
  • How much do you make a mont hif you make 32 an hour?
    8·1 answer
  • What multiplication fact Can be found by using the Arrays for 2 times 9 and 5 times 9
    11·1 answer
  • A sweater was marked up from $40 to $50. If p is the percent increase in the price of the sweater, which proportion can be used
    10·1 answer
  • the pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section
    11·1 answer
  • when solving an equation using the Distributive property, if the numbers being distributed are fractions,whats is your first ste
    15·1 answer
  • Eli gave out a survey to some students in his school about their favorite color. 880 of those surveyed said their favorite color
    14·1 answer
  • Solve: <br><img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7Blogy%20%7D%20%20%3D%20%7By%7D%5E%7Blogx%7D%20" id="TexFormula1" tit
    15·1 answer
  • What is the equation of the line that passes through the point (5, 0) and has a<br> slope of -1?
    5·2 answers
  • Rajni bought 2 1/2 kg onion at ₹ 30 1/2 per kg. Find the amount spent by Rajni​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!