Unit 1 Review: Statistics

 The city of Cleansburg has 8325 registered voters. The election for mayor has 3 candidates. A telephone poll taken a day before the election of 680 voters shows these results: 306 Smith, 272 Jones, 102 Brown. Name the sampling method used for this survey.

• Convenience Sample
• Stratified Sample
• Systematic Sample
• Small Sample

The 1250 students at Eureka High School are voting for Homecoming King. The candidates are Tomlinson (captain of the football team), Garcia (class president), and Marsalis (marching band member). A pre-election poll is taken as students entered a football game a week before the election. The results: 203 Tomlinson, 42 Garcia, 105 Marsalis. Name the sampling method.

• Systematic Sampling
• Sesame Chicken Sampling
• Stratified Sampling
• Convenience Sampling

Tags

CCSS.HSS.IC.B.3

An orange grower wishes to compute the average yield from his orchard. The orchard contatins 3 varieties: 50% of his trees are variety A, 25% of variety B, 25% of variety C. Suppose that the grower samples randomly from 300 trees of variety A, 150 of B, and 150 of C. What type of sampling is being used?

• Stratified Samplilng
• Convenience Sampling
• Simple Random Sampling
• Fruit sampling

Tags

CCSS.HSS.IC.B.3

An orange grower wishes to compute the average yield from his orchard. The orchard contatins 3 varieties: 50% of his trees are variety A, 25% of variety B, 25% of variety C. Suppose that the grower selects for his sample a 10 by 30 rectangular block of 300 trees of variety A, a 10 by 15 block of 150 B trees, and a 10 by 15 block of 150 C trees. What type of sampling is being used?

• Stratified Sampling
• Cluster Sampling
• Simple Random Sampling
• Convenience Sampling

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

Tags

CCSS.HSS.IC.B.3

Mrs. Trahan samples her class by selecting all students sitting at group 1 and group 5 in her classroom.  This sampling technique is called?

• Simple
• Stratified
• Systematic
• Cluster

Tags

CCSS.HSS.IC.B.3

Mrs. Trahan samples her class by selecting 5 girls and 7 boys.  This type of sampling is called?

• Stratified
• Systematic
• Simple
• Cluster

Tags

CCSS.HSS.IC.B.3

What would be the population in this example?
Surveyors in a mall choose shoppers to ask about products they prefer.

• the surveyors
• all shoppers in the mall
• the shoppers who were asked their preferences

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.A.1

What would be the sample in this example?
Surveyors in a mall choose shoppers to ask about products they prefer.

• the surveyors
• all shoppers in the mall
• the shoppers who were asked their preferences

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.A.1

As part of a 6th grade statistics project, the teacher brings a candy jar full of gumballs (red & green). The assignment is to estimate the proportion of red gumballs in the jar. Suppose one of the students draws 25 gumballs from the jar: 8 are red, 17 are green. What is the POPULATION?

• students
• red gumballs
• all gumballs in jar
• 25 gumballs drawn

Tags

CCSS.HSS.IC.A.1

CCSS.7.SP.A.1