Intro Statistics

I have 100 apples in bag with a margin of error of 2%

What is my range

• 100 to 104

• 98 to 100

• 96 to 104

• 98 to 102

Is the information collected during the survey numerical or categorical data?

• Numerical data. I know this because the y-axis is labeled with numbers. 

• Numerical data. I know this because the surveyor counted how many people that they surveyed. 

• Categorical data. I know this because the responses to the survey are names. 

• Categorical data. I know this because each column is a different color. 

Before a nation-wide election, a polling place was trying to see who would win. Which choice best represents a sample?

• A selection of voters over age 50.

• A selection of male voters.

• A selection of voters of different ages.

• All voters.

The statistic is a number describing the:

• population

• sample

• survey

• percent

Prather and Albert are running for teacher of the year there is a three point MOE. Predictions are Prather has 52% of the vote and Albert 48%. Considering the MOE Alberts range is

• 48%

• 45<x<51

• 48<x<55

• 42<x<66

Which of the following is an example of quantitative data?

• High School Graduate or Not

• Monthly paycheck amount

• Whether or not you are employed

• What type of vehicle you drive

Which of the following is an example of quantitative data? 

• The color of your car

• A person's state of residence

• A person's Zip Code

• A Person's Height

Given a mean of 75 and a standard deviation of 7, what percentage of scores are between 54 and 96?

• 34%

• 99.7%

• 95%

• 2.5%

Find the mean number of pets. You may need to copy out the table with an extra column.

• 0.87

• 1.55

• 1.68

• 1.45

The mean GPA of students in a course at UCDavis is 3.2 with a standard deviation of 0.3. What percent of students in the course have a GPA between  2.9 and 3.8? 

• 81.5%

• 47.5%

• 68%

• 95%