Answer:
A box-and-whisker plot shows the scores on a math exam for two classes.
Class A Class B
1) Minimum value 65 56
2) Lower quartile 66 79
3) Median 81 91
4) Upper quartile 89 94
5) Maximum value 95 100
First quartile also known as Lower quartile is the number below which lies the 25 percent of the bottom data.
Second quartile or Median divides the range in the middle and has 50 percent of the data below it.
Third quartile also known as upper quartile has 75 percent of the data below it and the top 25 percent of the data above it.
Interquartile Range = Upper quartile - Lower quartile,
For class A
Interquartile range = 89 -66 = 23
For class B
Interquartile range = 94 -79 = 15
The interquartile ranges tell you about the two classes that Class B has more consistent scores
Answer:
18. 150
19. They are not congruent
20. 60
Step-by-step explanation:
18. <EBC is 180 degrees so subtract by 30 because of angle F lowering the degree number by 30 and you get 150 degrees.
19. They are not congruent because they are not the same degree number and they aren't complementary because they don't equal 90 degrees. They aren't supplementary because they don't equal 180 degrees.
20. You get this by writing the equation 90-30 because angle F raises which lowers the angle dregree number by 30. So 90-30=60. Therefore, the answer is 60.
Answer:
Yes, it is correct
Step-by-step explanation:
Check attachment below:
A: 6.5
B: 3
C: 3.5
D: 1
E: 5
F: 4
B. They scored 27 points.
C. Eighty miles per hour.
D. Half the speed of the car.
A. The number of different colors on the page.
D. Half the speed of the car.
These statements contain variables representing unknown quantities or values.
Variables in mathematics and science are symbols that represent unknown values or quantities. Let's analyze each statement to identify the ones containing variables:
A. "The number of different colors on the page."
This statement contains a variable because it represents an unknown quantity, the number of colors.
B. "They scored 27 points."
This statement does not contain a variable as it explicitly states a specific value (27 points).
C. "Eighty miles per hour."
This statement does not contain a variable as it provides a specific constant value (80 miles per hour).
D. "Half the speed of the car."
This statement contains a variable because it represents an unknown value, which would depend on the actual speed of the car.
In summary, the statements containing variables are:
A. The number of different colors on the page.
D. Half the speed of the car.
These statements represent quantities that can vary, making them suitable for mathematical or scientific analysis where variables are used to express relationships and solve equations.
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