Arithmetic Sequence and Correlations

Is the sequence arithmetic: 37, 31, 25, 19, ...

• Yes
• No

Tags

CCSS.HSF.BF.A.2

What is the formula for Arithmetic Sequence?

• $a_1=a_n+(n-1)d$

• $a_n=a_1+(n-1)d$

• $a_n=a_1+(1-n)d$

• $a_n=a_1+(n-1)$

Tags

CCSS.HSF.BF.A.2

Given the sequence:
 25, 21, 17, 13,...
Write the explicit equation that models the sequence.

• a_n = 4n + 29
• a_n = -4n + 25
• a_n = -4n + 29
• a_n = 4n + 25

Tags

CCSS.HSF.BF.A.2

What is the 25th term given the sequence 13, 16, 19, 22, ...

• 83

• 84

• 85

• 86

Tags

CCSS.HSF.BF.A.2

Write the first six terms of the arithmetic sequence, given the first term a₁ = 7 and d = 4

Tags

CCSS.HSF.BF.A.2

A rocket ship rises 20 ft in the first minute, 60 ft in the second minute, and 100 ft in the third minute. How many feet will it rise on the 25^th minute?

Tags

CCSS.HSF.BF.A.2

What is the type of correlation?

• Negative 
• no association
• positive 

Tags

CCSS.HSF-LE.A.1B

Which of the following best describes this correlation?

• Positive, Strong

• Negative Strong

• Positive Weak

• Negative Weak

Tags

CCSS.HSF-LE.A.1B

r = 0.599. What is the strength of the correlation?

• Strong

• Weak

• Moderate

• None

Estimate the correlation coefficient for this scatterplot.

• A) r = 1.2

• B) r = 0.89

• C)r = 0

• D) r = -0.89

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8