Category 4 Math STAAR

Melissa collected data at the grocery store. She recorded how many people were in line in front of her and how long she had to wait in line. The graph shows her data from several visits to the grocery store. Melissa went to the grocery store again yesterday. When she went to pay for her items, there were 6 people in front of her. Based on this scatterplot, how long would she most likely wait in line?

• 
  

• • 14 minutes

• • 12 minutes

• • 8.5 minutes

• 3 minutes

Tags

8.5D

Cynthia has been studying the trees growing in the woods near her school. She has determined the age of several trees, and she measured their heights. She recorded that information and displayed it on a scatterplot. Based on this scatterplot, what is the approximate age of a tree that is 34 feet tall?

• • 7 years

• • 10.5 years

• • 13 years

• • 25 years

Tags

8.5D

Eight years after opening her savings account, Macy had $7,880 in the account which earns annual simple interest. If Macy started with $5,000 in her account and did not make any additional deposits or withdrawals, what was the approximate annual interest rate on the savings account?

• • 8%

• 19.7%

• • 7.2%

• • 4.5%

Tags

8.12D

Jacob deposited $6,000 into an account that offers 4.5% interest compounded annually.
He makes no additional deposits or withdrawals.  Which amount is closest to the interest Jacob will have earned at the end of 10 years?

• • 
    $9,317.82

• • $270.00

• $3,317.82

• $2,700.00

Tags

8.12D

The data shows that as the number of practice shots taken increases, the number of free throws missed ​ ​ (a)   . This trend has a ​ (b)   linear association.

• decreases
• increases
• negative
• positive

Tags

8.5C

The track team had 5 students that competed in discus throwing. The table shows how far each student threw a discus at the last track meet.

What was the students’ average distance away from the mean?

• • 0 feet

• 33 feet

• 5.6 feet

• • 28 feet

Tags

8.11B