Statistics Quiz

_______ is a part of a group being surveyed.

• Sample
• Population
• Random Sample
• Quartile

_________ is a sample in which each individual or object in the entire population has na equal chance of being selected.

• Sample
• Population
• Random Sample
• Quartile

_______ is the entire group of objects or individuals considered for a survey.

• Sample
• Population
• Random Sample
• Quartile

The TV station wants to get the opinion of viewers on the look of a new game-show set.  The station's staff calls random people in the phone book.  Is this biased or unbiased?

• Biased
• Unbiased

A student wants to know which type of pizza the students at his high school prefer. Which option would give an unbiased, representative sample:

• Asking all the students in the hot lunch line.

• Asking 10 random students from each homeroom.

• Asking every other student who gets off a school bus.

• Asking all the 10th graders.

At a middle school, the 7th graders will conduct a survey for where to go on a field trip. Which method will result in the least biased decision?

• to randomly ask 8th grade students who went on a field trip last year
• to randomly choose some 7th grade students to select a location
• to ask all 7th grade teachers and administrators for a location
• to ask the student council to choose a location

• 14 7th graders

• 28 7th graders

• 35 7th graders

• 42 7th graders

River Bluff High School has a student population of 3020. In a sample of 250 students, 170 of them were female athletes. Approximately how many students in the entire population should be female athletes?

• 170

• 205

• 2,054

• 2,770

Several students were surveyed about their favorite drinks. 22 said orange soda, 34 Pepsi, 40 coke, and 29 grape soda. Predict how many students will like coke if 500 students are surveyed?

• 12.5

• 40

• 160

• 167

In order to find the median, the data must be sorted from least to greatest first.

• True
• False