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beks73 [17]
3 years ago
14

Question 7

Mathematics
1 answer:
CaHeK987 [17]3 years ago
6 0

Answer:

6.6

Step-by-step explanation:

The way to do this is to find the tax as a decimal. Worry about the 100 later.

54 * x = 3.56

Divide by 54

x = 3.56/54

x = .06593

Now use the 100

0.06592 * 100 = 6.593

But you want it rounded to the 1/10

So you should get 6.6 %

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The median, because the data is skewed

Step-by-step explanation:

Mean = 12.75

Mode = 12

Median = 12

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At the beginning of spring, Caroline planted a small sunflower in her
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After 10 weeks: 40 inches

Step-by-step explanation:

Equation

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Solve 2(3x-5)-3(6-4x)+(15x+3)
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33x-25

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2 years ago
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A survey found 195 of 250 randomly selected Internet users have high-speed Internet access at home. Construct a 90% confidence i
Andrej [43]

Answer:

d. (0.737, 0.823)

The 90% confidence interval is = (0.737, 0.823)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

p+/-z√(p(1-p)/n)

Given that;

Proportion p = 195/250 = 0.78

Number of samples n = 250

Confidence interval = 90%

z value(at 90% confidence) = 1.645

Substituting the values we have;

0.78 +/- 1.645√(0.78(1-0.78)/250)

0.78 +/- 1.645√(0.0006864)

0.78 +/- 1.645(0.026199236630)

0.78 +/- 0.043097744256

0.78 +/- 0.043

(0.737, 0.823)

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8 0
2 years ago
Please what’s the value of x
Wewaii [24]
The value of z is 20
8 0
2 years ago
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