Lesko Data Analysis, probability

The number of siblings you have and your weight. 

• Positive correlation
• Negative correlation
• No correlation
• All of the above

What type of correlation (association)?
The outside temperature and the amount of layers you wear. 

• Positive correlation
• Negative correlation
• No correlation
• All of the above

A small theme park is trying to determine the number of guests they should expect on a weekend, based on the temperature outside.  Based on the trend line, about how many guests should be expected if the temperature is around 80°?

• 8,300
• 8
• 7,300
• 9,300

If 200 people were surveyed, approximately how many people like pepperoni and cheese as their topping?

• 100 people

• 150 people

• 50 people

• 75%

Which value is in the top 25% of the data?

• 16
• 22
• 29
• 36

True of false, 75% of the data values are greater than 18?

• True
• False, 75% of the values are greater than 16
• False, 50 % of the values are greater than 18
• False, 25% of the values are greater than 18

Probability can be written as ...

• a fraction
• a decimal
• a percent
• all of the above

What is the approximate difference in the interquartile ranges?

• 20
• 12
• 32
• 40

Students were surveyed about their favorite sports to play in phys.ed. The results are represented in this circle graph. If 48 students were surveyed, how many chose soccer?

• 10
• 12
• 15
• 14

The graph above shows a line of best fit for data collected on the amount earned by waiters and waitresses last week in relation to the number of tables they served.  What is the equation of the line of best fit?

• y = (5/3) x + 375
• y = (1/3) x + 475
• y = (5/3) x + 475
• y = (1/3) x + 375