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Solve It! Association Frequency

Slope Best Line

QUESTION: Solve for the given variable.

1/2x + 3 = 3/4x + 5

ANSWER:

X = -8

QUESTION: Solve for the given variable.

X/2 + X/6 = 7

ANSWER:

X = 10.5 or 10 ½

QUESTION: Solve for the given variable.

X/9 + 2X/2 = 1/3

ANSWER:

X = 3/10

QUESTION: Solve for the given variable.

2.1X + 0.6 = 17.4

ANSWER:

X = 8

QUESTION: Solve for the given variable.

3y/5 + 3/2 = 7y/10

ANSWER:

Y = 15

QUESTION: Describe the situation as Positive,

Negative, or No Association at all.

Going to the grocery store, and leaving with less money from what I started with.

ANSWER:

Negative Association

QUESTION: Describe the situation as Positive,

Negative, or No Association at all.

The amount of money a person has and how much they weigh.

ANSWER:

No Association

QUESTION: Describe the situation as Positive,

Negative, or No Association at all.

The amount of horsepower in your car and how fast your car will travel.

ANSWER:

Positive Association

QUESTION: Describe the situation as Positive,

Negative, or No Association at all.

The number of dogs you have and the amount of dog food you must buy.

ANSWER:

Positive Association

QUESTION: Describe the situation as Positive,

Negative, or No Association at all.

The number of minutes spent running and the level of hydration in your body.

ANSWER:

Negative Association

QUESTION:

What does frequency mean?

ANSWER:

How often something occurs within an interval or data set.

QUESTION: How do you calculate percent?

ANSWER:

Divide part over total

QUESTION: Calculate the percents for the following:

ANSWER:

6.7% 6.7% 6.7% 20% 0% 26.7%

13.3% 6.7% 13.3%

QUESTION: Analyze the following frequency table.

Find which height occurs most often. Calculate the %

ANSWER:

170 cm or 41%

QUESTION: Create a circle graph for the information.

ANSWER:

QUESTION: Solve for y. Tell me the slope.

5

*y*

+ 15x = 25

ANSWER: y = -3x + 5 The slope is -3/1

QUESTION: Write the equation for the following:

ANSWER:

*y*

= −2

*x*

+ 1

QUESTION: Write the equation for the line.

ANSWER:

Y = x + 3

QUESTION: Graph the following line:

y = 2x - 1

ANSWER:

QUESTION: Find the intersection point of the

following lines:

*y = 4x *

*– 6 *

ANSWER:

*y = -2x + 3 *

(1.5,0)

QUESTION:

When graphing two variables, which axis is the independent and which is the dependent variable?

ANSWER:

The independent is the X axis

The dependent is the Y axis

QUESTION: Does the following graph have a strong, moderate, or weak/no association. Be ready to explain your answer.

ANSWER:

Moderate

QUESTION: This is a piece of data that doesn’t fit the given data set. What do we call this?

ANSWER:

*An outlier *

QUESTION: Fully describe the scatter plot. Make sure to include direction and strength of association.

ANSWER:

Strong & Positive

QUESTION:

Fully describe the scatter plot. Make sure to include direction and strength of association.

ANSWER:

Negative & No

Association