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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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8 pieces of wood. It takes 6 inches to make 1 dowel, so with 4 feet (48 inches) you could make 8 dowels per board. You would need 7.5 boards to make 60, but you cant buy half a board, so the answer is 8


4 0
3 years ago
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pedro has 6 packs of gum with p pieces in each pack he had a total of 72 pieces of gum decide whether each equation represents t
Serga [27]

Answer:

6p = 72 --- The equation

The solution is 12 packs i.e. p = 12

Step-by-step explanation:

No options given. So, I will solve generally.

Given

Packs = 6

Quantity = p per pack

Total = 72

Required

Determine the equation

This is calculated using:

Packs * Quantity = Total

6 * p = 72

6p = 72

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4 0
3 years ago
X = –6 3x − 2y = –6 solve using substetution <br> NEED FAST
kondaur [170]

Answer:

(x = -6), (y = -6)

(-6,-6)

Step-by-step explanation:

X=-6

3x - 2y = -6

3(-6) - 2y = -6

-18 - 2y = -6

What you do to one side, you do to the other. And when you take it over to the other side, you'll have to turn -18 into a positive 18.

-2y = 18 - 6

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Divide both sides by -2

y = -6

7 0
4 years ago
Find the height of a cone with a diameter of 12 m whose volume is 226 m^3.
lozanna [386]
5m the answer because the height of the cone
4 0
3 years ago
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Pork chops cost $3.30 a pound at the market. Mary buys 4.4 pounds. Find the cost. a. $7.70 b. $14.52 c. $18.92 d. $15.52
Fofino [41]

Answer:

B) $14.52

Step-by-step explanation:

1 lb of pork chop = $3.30

Mary is buying 4.4 pounds.

Multiply 4.4 with 3.30

4.4 x 3.30 = 14.52

$14.52, or B) is your answer

~

8 0
3 years ago
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