Statistics Algebra

Which statement is correct about this

• Called Box and Whisker plot. Median is used. Also called Standard Deviation.

• Called Box and Whisker plot. Mean is used. Also called 5 - number summary.

• Called 68 - 95 - 99.7 rule. Median is used. Also called 5 - number summary.

• Called Box and Whisker plot. Median is used. Also called 5 - number summary.

Central tendencies of a data set are

• mean and median

• median and mode

• mean, median and mode

• mean only

Describe the correlation in the graph shown.

• Weak Negative

• Weak Positive

• Strong Negative

• Strong Positive

The linear regression equation is y = 61.93x - 1.79.  The y-intercept can be interpreted as:

• After 0 hours of driving, they went -1.79 miles.

• They are driving -1.79 miles per hour.

• They drove 1.79 miles total.

• They drive 1.79 hours total.

A person travels by car.  They record their miles driven in a data table.  Calculate the linear regression equation of this data.

• y = 61.93x - 1.79

• y = -1.79x + 61.93

• y = 0.016x + 0.03

• y = 0.03x + 0.016

The linear regression equation is y = 61.93x - 1.79.  Use the equation to predict how far this person will travel after 10 hours of driving.

• 10 miles

• 617.5 miles

• 0.19 miles

• 500 miles

Find the curve of best fit for the relationship of the horizontal distance and the height of the ball.

• h(x) = -18x² + 2.11x + 4.21

• h(x) = -.06x² +1.06x + 7.9

• h(x) = -6x² +1.06x + 79

• h(x) = -.12x² + 2.11x + 4.22

Write the exponential regression equation for this data.

• Y = 8.16(2.7)^X

• Y = 81.6(2.7)^X

• Y = 8.16(.27)^X

• Y = 8.16(27)^X

This equation models a person's max bench press (in pounds) after lifting weights consistently for x months.  After how may months will the person bench 300 pounds?

• 122.4 months

• 125.23 months

• 323.3 months

• 269.82 months

Which graph shows a proportional relationship between x and y?

• A

• B

• C

• D