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cluponka [151]
3 years ago
9

In a survey of 225 art students 28% reported that their favorite color is blue. What is the margin of error for the sample?

Mathematics
1 answer:
ipn [44]3 years ago
3 0
Margin of error is important in determining the probability as it gives realistic data for the distribution. The formula to be followed for margin of error is m% = z* sqrt (p*(1-p))/n where p is the % positive outcome, n is the sample size and z* is a constant dependent to % confidence level. Substituting, m% = z* (0.03). Level of confidence is not given but assuming at95% CF, m% = 6%
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perter's glasses each hold 8 fluid ounces.how many glasses of juice can perter pour from a bottle that holds 5 quarts
NeX [460]

Answer:

8 glasses :)

Step-by-step explanation:

There is 32oz per quart. 8 goes in to 32 a total of four times. So since there are two quarts, Peter can pour 8 glasses.

From everything I've seen it should be 2 quarts from my knowledge. Sorry if this doesn't help!

3 0
3 years ago
How to start the problem off. (substitution)
otez555 [7]
Do you have to use substitution? 
5 0
3 years ago
Evaluate the function f(x)=x^2-5x+ 5 at the given values of the independent variable and simplify
11111nata11111 [884]

Step-by-step explanation:

The given function is :

f(x)=x^2-5x+ 5

(a) To find f(9), put x = 9 in the above expression.

f(9)=9^2-5(9)+ 5=41

(b) To find f(x+7), put x = x+7 in the above expression.

f(x+7)=(x+7)^2-5(x+7)+ 5\\\\=x^2+14x+49-5x-35+5\\\\=x^2+9x+19

(c) To find f(-x), put x = -x in the above expression.

f(-x)=(-x)^2-5(-x)+ 5\\\\=x^2+5x+5

Hence, this is the required solution.

8 0
2 years ago
5 times the sum of 8 and d
SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

To write Five times the sum of a number and one you first make "a number" into a variable. In this case let's call it  

n

.

Next let's create the sum of a number and one. This would be:  

n

+

1

.

Then to get five times this number we need to multiple this expression by five to get:  

5

⋅

(

n

+

1

)

5 0
3 years ago
The answers is what I got but it said it was wrong. can anyone hhelp find the right answer?​
klio [65]

Answer:

but its right

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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