Lesson 1 Connect the Dots Develop Understanding

Ready

Use the dot plot to answer problems 1–2.

1.

What is the median for this data set?

2.

What is the range for the data set?

Use the data set shown for problems 3–6.

$12, 16, 10, 17, 10, 13, 18, 17, 13, 14, 12, 17, 11, 17, 12, 16, 17, 10$

3.

Create a dot plot for the data set.

4.

Find the measures of central tendency (mean and median) for the data set in problem 3.

5.

Create a box plot for the data set.

6.

Which measure of central tendency stands out in a box plot?

Set

7.

$0.05$
$0.97$
$- 0.94$
$- 0.49$
$0.68$
$- 0.25$

Use technology to find the correlation coefficient for each data set.

8.

GPA	ACT score
$2.7$	$30$
$2.9$	$25$
$3.2$	$29$
$2.5$	$27$
$3.6$	$35$
$4.0$	$32$
$2.2$	$24$

9.

Time (hours)	Packages on Truck
$1$	$95$
$3$	$72$
$5$	$37$
$7$	$25$
$8$	$15$
$10$	$7$

10.

State two things that you know for sure about a data set, if the correlation coefficient is greater than $0.8$ .

11.

State two things that you know for sure about a data set, if the correlation coefficient is $- 0.55$ .

Go

Create an explicit equation for each sequence. Use your equation to find the desired term of the sequence.

12.

$4, 8, 16, 32, \dots$

Explicit equation:

Find $f (12)$ .

13.

$4, 8, 12, 16, \dots$

Explicit equation:

Find $f (12)$ .

14.

$30, 20, 10, \dots$

Explicit equation:

Find $f (25)$ .

15.

$- 56, - 49, - 42, - 35, \dots$

Explicit equation:

Find $f (30)$ .

16.

$400, 100, 25, \dots$

Explicit equation:

Find $f (8)$ .

17.

$21, 13, 5, \dots$

Explicit equation:

Find $f (12)$ .