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goblinko [34]
4 years ago
11

For questions 6a & 6b, calculate the mean for each group: 6a) Textbook A 6b) Textbook B Mean: ______________ Mean: _________

_____ 6) Which class performed better? 7) If the standard deviation for Class A was 26.3 and the standard deviation for Class B was 8.5, which class was more consistent?
Mathematics
1 answer:
lisabon 2012 [21]4 years ago
3 0

Answer:

44 52 95 76 13 94 83 72 55 81 22 25 64

The mean is: 59.7

65 72 48 63 68 59 68 62 75 79 81 72 64

The mean is: 67.4

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Answer:

Step-by-step explanation:

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3 years ago
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How do I draw and determine the equation of a trend line on a scatterplot
Nat2105 [25]

Step-by-step explanation:

Step 1: Draw your trend line.

You begin by drawing your trend line. You want your trend line to follow your data. You want to have roughly half your data above the line and the other half below the line, like this:

trend line equation

Step 2: Locate two points on the line.

Your next step is to locate two points on the trend line. Look carefully at your trend line and look for two easy to figure out points on the line. Ideally, these are points where the trend line crosses a clearly identifiable location.

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trend line equation

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trend line equation

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trend line equation

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8 0
3 years ago
A garden snail moves 1/6 foot in 1/3 hour. Find the speed of the snail in feet per hour
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6 0
3 years ago
5+68empty space, 5, plus, 68 =(3+=(3+equals, left parenthesis, 3, plus 5 )+ 68)+68right parenthesis, plus, 68 =3 + (=3+(equals,
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Answer:

Give me and example

Step-by-step explanation:

6 0
3 years ago
Which statement is true about the given information?
Lubov Fominskaja [6]

Answer

∴ The true statement is Answer:

The true statement is BD ≅ CE  ⇒ 3rd answer

Step-by-step explanation:

- There is a line contained points B , C , D , E

- All points are equal distance from each other

- That means the distance of BC equal the distance of CD and equal

 the distance of DE

∴ BC = CD = DE

- That means the line id divided into 3 equal parts, each part is one

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∴ BC = 1/3 BE

∴ CD = 1/3 BE

∴ DE = 1/3 BE

∵ BC = CD

∴ C is the mid-point of BD

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∵ CD = DE

∴ D is the mid-point of DE

∴ CD = 1/2 CE

- Lets check the answers

* BD = one half BC is not true because BC = one half BD

* BC = one half BE is not true because BC = one third BE

* BD ≅ CE is true because

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* BC ≅ BD is not true because BC is one half BD

∴ The true statement is BD ≅ CE

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5 0
2 years ago
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