Unit 6: Algebra 1 EOC Review

This table shows the average low temperature, in °F, recorded in Macon, GA, and Charlotte, NC,over a six-day period.Which conclusion can be drawn from the data?

• The interquartile range of the temperatures is the same for both cities.
• The lower quartile for the temperatures in Macon is less than the lower quartile for the temperatures in Charlotte.
• The mean and median temperatures in Macon were higher than the mean and median temperatures in Charlotte.
• The upper quartile for the temperatures in Charlotte was less than the upper quartile for the temperatures in Macon.

Which statement is true about the average number of coats collected by the freshman and sophomore homerooms?

• The freshmen averaged 1 more coat collected than the sophomores.
• The freshmen averaged the same number of coats collected as the sophomores.
• The sophomores averaged 1 more coat collected than the freshmen.
• . The sophomores averaged 3 more coats collected than the freshmen.

For this data, which summary statistic is NOT correct?

• The minimum is 39.
• The lower quartile is 44.
• The median is 45.
• The maximum is 51.

A science teacher recorded the pulse of each of the students in her classes after the students had climbed a set of stairs. She displayed the results, by class, using the box plots shown. Which class generally had the highest pulse after climbing the stairs?

• Class 1
• Class 2
• Class 3
• Class 4

What is the BEST explanation for why Peter’s Week 2 mean score was lower than his Week 1 mean score?

• Peter received the same score three times in Week 1.
• Peter had one very low score in Week 2.
• Peter did not beat his high score from Week 1 in Week 2.
• Peter had one very high score in Week 1.

This histogram shows the frequency distribution of duration times for 107 consecutive eruptions of the Old Faithful geyser. The duration of an eruption is the length of time, in minutes, from the beginning of the spewing of water until it stops. What is the BEST description for the distribution?

• bimodal
• uniform
• multiple outlier
• skewed to the right

Which graph MOST clearly displays a set of data for which a quadratic function is the model of best fit?

• 
• 
• 
• 

This graph plots the number of wins last year and this year for a sample of professional football teams. Which equation BEST represents a line that matches the trend of the data?

• y = x + 2
• y = x + 7
• y = 0.6x - 0.2
• y = 0.6x + 2.4

This graph plots the number of wins last year and this year for a sample of professional football teams. Based on the line of best fit, which is the BEST prediction for wins this year for a team that won 4 games last year?

• 2
• 4
• 5
• 7

Which BEST describes the correlation of the two variables shown in the scatter plot?

• weak positive
• strong positive
• weak negative
• strong negative