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Andrew [12]
3 years ago
7

8.06

Mathematics
1 answer:
mars1129 [50]3 years ago
8 0

Answer:

The confidence interval is between 52.2% and 55.8%

Step-by-step explanation:

Since the study showed that 54% of the people involved in the study had experienced flu-like symptoms, and the margin of error is 1.8%, which is relatively small margin of error, we can easily come to the confidence interval. Since the margin of error goes both ways, above and below the official percentage, in order to get to the confidence interval we need to deduct the margin of error from the percentage, and also, separately, to add the margin of error to the percentage.

54 - 1.8 = 52.2

So the low border of the confidence level is 52.2%.

54 + 1.8 = 55.8

So the high border of the confidence level is 55.8%.

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a coin is tossed and an eight sided die numbered 1 through 8 is rolled. find the probability of tossing a head and then rolling
Alekssandra [29.7K]

Answer:

The answer is 4.

Step-by-step explanation:

There are 16 possible outcomes of this, and of those, only 4 of them result in the coin landing on heads and landing on a number that is greater than 4.

7 0
3 years ago
Solve for x: 1 over 3 (2x − 8) = 4. (1 point)
STALIN [3.7K]
You ANSWER : x=10 Let's solve !
Explanation : Let's solve your equation step-by-step.
1
3
(
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4
Step 1: Simplify both sides of the equation.
1
3
(
2
x
−
8
)
=
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(
1
3
)
(
2
x
)
+
(
1
3
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(
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(Distribute)
2
3
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+
−
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3
=
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Step 2: Add 8/3 to both sides.
2
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+
8
3
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+
8
3
2
3
x
=
20
3
Step 3: Multiply both sides by 3/2.
(
3
2
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*
(
2
3
x
)
=
(
3
2
)
*
(
20
3
)
x
=
1
6 0
4 years ago
Read 2 more answers
Which statement about scatter plots is true? A. Associated variables cannot be represented on scatter plots B. A regression line
Ratling [72]
A scatter plot or also called the scatter graph, chart or diagram is a type of plot or mathematical diagram using Cartesian coordinates to display value for typically two variables for set of data. Base on that fact, the possible answer to your question is letter D. Scatter plot can be used to represent quantitative data 
3 0
4 years ago
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Marcus is working at a local pizzeria where he makes $12.50 per hour and is also working at the university bookstore where he ma
FrozenT [24]

Answer: The system of inequalities that models this situation are

p + b ≤ 30

12.5p + 9.5b ≥ 300

Step-by-step explanation:

Let p represent the number of hours he works at the pizzeria.

Let b represent the number of hours he works at the bookstore.

He cannot work more than 30 hours per week in order to attend classes. This means that

p + b ≤ 30

Marcus is working at a local pizzeria where he makes $12.50 per hour and is also working at the university bookstore where he makes $9.50 per hour. He must make at least $300 per week to cover his expenses. This means that

12.5p + 9.5b ≥ 300

8 0
3 years ago
What is the recursive formula for this geometric sequence 2, -10, 50, -250
BlackZzzverrR [31]

Answer:

a_k=-5\cdot a_{k-1}, \,\,\,k=1,2,...\,\,\,\mbox{and}\,\,\,a_0=2

Step-by-step explanation:

The recursion is as follows:

a_k=-5\cdot a_{k-1}, \,\,\,k=1,2,...\,\,\,\mbox{and}\,\,\,a_0=2

and unrolling the first few examples:

a_0=2\\a_1=-5\cdot 2 = -10\\a_2= -5\cdot (-10) = 50\\a_3 = (-5) \cdot 50 = -250


6 0
3 years ago
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