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Aleks04 [339]
3 years ago
5

The standard deviation of a population is 3.2. What is the margin of error?

Mathematics
2 answers:
Reptile [31]3 years ago
6 0
Margin of error is 0.783985593816022
seropon [69]3 years ago
5 0

Answer:

6.4

Step-by-step explanation:

took the test

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Hi please help me the pic is up there
mojhsa [17]

Answer:

4p^3 (4p + 1)

Step-by-step explanation:

All we can do with this equation is factor it.

16p^4 + 4p^3  

When we look at the coefficients, there is a common factor of 4 with 16 and 4. The p's are also common factors, and we can take out a common factor of x^3. We can combine these common factors and take them out of the equation at the same time.

4p^3 (4p + 1)

8 0
2 years ago
A recent survey was conducted to compare the cost of solar energy to the cost of gas or electric energy. Results of the survey r
Mariana [72]

Answer:

c) at most 11.1%

Step-by-step explanation:

We have the data that is 97 ± 12, with 97 being the mean and 12 the standard deviation.

Now, the percentage of people who reached them for less than 73 dollars, if it were a normal distribution:

z = (73 - 97) / 12 = - 2

so it would be, a probability of 0.0228 or 0.228%.

But we don't know what distribution it has, but we can get an idea.

A and D discarded, as they are very high values, and 73 is well below the average.

B) is still a very high value.

Therefore the answer is C, at most 11.1%

4 0
3 years ago
(1/125x^3)-1/3<br> Simplify the expression
bija089 [108]

Step-by-step explanation:

Simplify   1/125

1/125 . (x3))-1) ÷ 3

(x3

(———)-1) ÷ 3

 125

3.1    x3 raised to the minus 1 st power = x( 3 * -1 ) = x-3

3.2     125 = 53 (125)-1 = (53)(-1) = (5)(-3)

x(-3)  

 ——————— ÷ 3

(5)(-3)

         x(-3)        

Divide  ———————  by  3

  (5)(-3)

Answer:  125

/3x3

3 0
3 years ago
Based on past musical productions, a theater predicts selling 400−8p number of tickets when each ticket is sold at p dollars. Us
Dvinal [7]

To earn at least $3,200 in revenue, the ticket prices should be $10 or $40.

<h3>What is an Equation</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

Revenue = number of tickets sold * price per ticket = (400 - 8p)p

Revenue = 400p - 8p²

For no revenue:

400p - 64p² =  0

p = $0 or p = $50

For revenue of atleast 3200:

400p - 8p² =  3200

p = $10 or p = $40

To earn at least $3,200 in revenue, the ticket prices should be $10 or $40.

Find out more on Equation at: brainly.com/question/1214333

7 0
2 years ago
Read the problem and select the correct inequality.
mash [69]

Answer:

C. t > 40

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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