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U2cL7 Scatterplot & Correlation Quiz

Last updated over 5 years ago

10 questions

1

1

Question 2

2.

What is the correlation coefficient(rounded to the nearest hundredth? What type of correlation? Separate with a comma

1

1

1

1

1

1

1

1

Question 10

10.

Write your equation for the line of best fit(round to the nearest hundredth and no spaces). Then write your prediction for in what year sales will reach $500. Separate your responses with a comma

Question 1

1.

How many hits should you expect from a player who is at bat 175 times?

35 bats

49 bats

609 bats

62 bats

Question 3

3.

If he uses the points (2, 8) and (5, 1.5) from his line, which equation ould best represent the line of best fit?

y=-2.17x+12.3

y=2.17x+3.77

y=-0.46x+9

y=-2.17x-9.35

Question 4

4.

Which of the two given points would be the best to use to calculate the line of best fit?

(500, 11) and (700, 11)

(300, 9) and (400, 7)

(400, 9) and (500, 11)

(300, 7) and (600, 10)

Question 5

5.

Which is most likely the relationship he will see between age and height?

A negative correlation

No correlation

A positive correlation

A constant correlation

Question 6

6.

Which shows the line of best fit for the data?

A

B

C

D

Question 7

7.

Use the equation to help him predict the number of students who will drop out in 2012?

-20.2996 students

21 students

136 students

156 students

Question 8

8.

Which graph respresents a positive correlation?

A

B

C

D

Question 9

9.

Using the line of best fit, predict the average consumption of bottled water in the year 2000?

20 gallons

18 gallons

20 gallons

19 gallons