CW1.5-1.6 Relative Frequency, Scatterplot Correlation

What is the total number of students speaking different languages?

• 20
• 25
• 50
• 100

What is the relative frequency of students speaking Arabic?

• 32%
• 24%
• 10%
• 2%

What is the relative frequency of students speaking Spanish?

• 16%
• 12%
• 24%
• 48%

What is the relative frequency (to the nearest percent) of boys among those who cannot bike to school? 

• 4%
• 14%
• 13%
• 29%

What percentage of girls have blonde hair?

• 30%
• 32%
• 29%
• 40%

What percentage of SUV's are driven by women?

• 56.25%
• 75%
• 83.25%
• 86.5%

What is the relative frequency for selecting a teen given that the person likes chocolate?

• .112
• .267
• .164
• .056

• strong positive

• strong negative

• weak positive

• weak negative

• strong positive

• strong negative

• weak positive

• weak negative

Estimate the correlation coefficient

• r=-1
• r=1
• r=-0.5
• r=0.5