Unit 9 Statistics & Bivariate Data Review #1

What type of relationship is shown on the scatter plot?

• Positive Relationship

• Negative Relationship

• No Relationship

Which is true according to the scatter plot?

• As the size of the team increases, the completion time increases

• As the size of the team increases, the completion time decreases

• The size of the team and the completion time are not related

Which scatter plot shows the most accurate line of best fit?

• 
• 
• 
• 

In the equation for the cost of a gym membership, which statement correctly describes both the slope and the y-Intercept? 

• The slope represents the monthly charge for the gym membership, the y-intercept represents the sign up fee for the membership.

• The slope represents the sign up fee for the gym membership, the y-intercept represents the monthly charge for the membership.

• The slope represents the monthly charge for the gym membership, the y-intercept represents the total cost for the first month of the membership.

• The slope represents the total cost for the first month of the gym membership, the y-intercept represents the sign up fee for the membership.

Y is the total cost, in dollars, for a membership for a certain number of months, X.

What is the total cost for the gym membership after 6 months?

y = 32.50x + 65

• $103.50

• $260.00

• $422.50

• $585.00

True or False:

More grade 8 students were surveyed than grade 7.

• True

• False

True or False:

A total of 221 students were surveyed.

• True

• False

True or False:

Less than 50% of the grade 8 students surveyed exercised 5 or more hours last week.

• True

• False

True or False:

More than 50% of the students surveyed exercised less than 5 hours last week.

• True

• False

True or False:

A total of 107 grade 7 students were surveyed.

• True

• False