The results of a public opinion survey on raising the minimum wage are summarized in the table. Which statement is FALSE?A) 40% of those between the ages of 21-40 are against an increase.
B) About 20% of those over 60 are against an increase.
C) About 30% of all of the people surveyed had no opinion,
D) More people over the age of 60 support an increase than any other group.
Answers
Answer:
C) About 30% of all of the people that surveyed had no opinion,
Step-by-step explanation:
I just did the question..
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Answer:
Four less than an unknown value: D
Quotient of a variable and four: A
Some number to the power of four: E
Four times an unknown value: B
Four more than some number: C
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diameter/2=radius
diameter=9
d/2=9/2=4.5=r
area=pi4.5^2
area=pi20.25
aproxpi=3.14
area=63.585
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Answers
One can miss up to 24 questions and still achieve an 80% score.
In order to calculate the points each question is worth and determine how many questions you can miss while maintaining an 80% score.
To find the points each question is worth, we divide the total points by the number of questions. Let's assume the test is out of 100 points, which is a common scale. Therefore, each question would be worth or approximately 1.05 points.
Now, let's determine how many questions you can miss while still achieving an 80% score (which is 80 out of 100 points). We'll set up an equation to solve for the maximum number of questions you can miss, denoted by "x":
To solve for "x," first, we'll simplify the equation:
Next, we'll isolate "x" by multiplying both sides by 95:
Now, isolate "-100x" by subtracting 7600 from both sides:
Finally, divide both sides by -100 to solve for "x":
So, you can miss up to 24 questions and still achieve an 80% score.
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Answers
The standard deviation of the given data is 17.1
What is standard deviation?
Standard deviation meaning in statistics is a measure of how much the data points vary from the mean or average. It is calculated as the square root of the variance, which is the average of the squared deviations of each data point from the mean.
Given is a data set, we need to find the standard deviation of the data set,
S = 25, 40, 35, 25, 40, 60, 75
Finding the mean =
(25+40+35+25+40+60+75)/7 = 42.86
Finding the variance =
(25-42.86)² = 319
(40-42.86)² = 8.2
(35-42.86)² = 61.8
(25-42.86)² = 319
(40-42.86)² = 8.2
(60-42.86)² = 293.8
(75-42.86)² = 1033
(319+8.2+61.8+319+8.2+293.8+1033)/7=291.9
Therefore, the standard deviation =
√291.9 = 17.1
Hence, the standard deviation of the given data is 17.1
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Answer:
17.1
Step-by-step explanation:
1. Find the Mean
(25+40+35+25+40+60+75)/7 = 42.9
2.For each number, subtract the Mean and square the result.
(25-42.86)^2=319
(40-42.86)^2=8.2
(35-42.86)^2=61.8
(25-42.86)^2=319
(40-42.86)^2=8.2
(60-42.86)^2=293.8
(75-42.86)^2=1033
3. Find the Mean of those squared differences.
(319+8.2+61.8+319+8.2+293.8+1033)/7=291.9
4.Take the square root of that and this is what you want.
square root of 291.9 = 17.1