CCA2 B Final Review LT 9-10

Find the sum.

• -1475

• -1020

• 1475

• -1389

What is the sum of the first 50 terms of the series 2 + 17 + 32 + 47 + ...?

• 1,600
• 18,235
• 18,475
• 19,125

What is the least biased way to survey high school students on whether they play video games in their spare time or not.

• Give a survey to the gaming club at their after school meeting.

• Randomly choose a sample of 100 students from BHS by using a random # generator.

• Survey every 3rd person that walks into Mrs. Belting's 9th grade algebra classes.

• Put a poll on the Blaine High School website for students to answer whether they play or not.

Find the sum.

• 6401.99

• 6229.54

• 6371.77

• 5970.25

Marianne wanted to know students' opinion on the new schedule at school. She survey's the first 30 students who come into her class.

• Convenience Sampling

• Systematic Random Sampling

• Simple Random Sampling

• Volunteer response

Find the sum.

• -3

• NO SUM

• 3

The front row of a theater has 25 seats. Each of the other rows has 3 more seats than the row before it. What is the total number of seats in the first 15 rows?

• 712 seats

• 67 seats

• 510 seats

• 690 seats

This sample is selected by dividing the population into subgroups and then taking a fixed number of units from each group using the simple random sample.

• stratified
• cluster
• judgment
• experimental

Mrs. Trahan samples her class by selecting every third person on her class list.  Which type of sampling method is this?

• Simple
• Systematic
• Stratified
• Cluster

Find the sum: 11 + 15 + 19 + .......+ 83

• 19

• 83

• 893

• 624