Data Unit

In a scatterplot, an outlier...

• ...is something we didn't learn 8th grade

• ...is a puppet with a long nose named Pinocchio

• ...is a point that is far outside the main cluster of points/ordered pairs

• ...is a really naughty point who doesn't tell the truth when outside

The scatter plot below shows the number of books read by students in Mrs. Hall’s English class and their final grades. Which statement represents the best description about the line of best fit?

• The more books students read, the lower their English grade.

• The more books students read, the higher their English grade.

• The fewer books students read, the higher their English grade. 

• No relationship exists between the number of books students read and their English grades. 

Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam?

• 65

• 92

• 70

• 76

Scatter plots show trends in data.

• True

• False

What type of correlation is shown in this plot?

• Positive

• Negative

• No Correlation

What type of correlation is shown in this plot?

• Positive

• Negative

• No Correlation

A survey explored the relationship between gender and band class. Which is a reasonable conclusion?

• There are more band members than non-band members

• There are more boys in the class than girls

• There are more boys in band than not in band

• More than half of the bands members in the class are girls

What percent of the total people attended neither?

• 15%

• 19%

• .15

• 7%

How many students were surveyed total?

• 116

• 182

• 81

• 298

How many students are in 8th grade and like History?

• 36

• 45

• 81

• 298