On Display
A pie chart (circle graph) is best used for what type of data?
Categorical Data
Find the MEAN of the following numbers:
10, 15, 17, 19, 20
16.2
What is a 5 number summary?
Minimum, Quartile 1, Median, Quartile 3, Maximum
What does SOCS stand for?
Shape, Outlier, Center, Spread
What is the formula for calculating outliers?
Q1 - 1.5 (IQR)
Q3+1.5(IQR)
What type of graph shows a number line with data points stacked on top of each other?
Dot Plot
What is the symbol for mean?
x bar
If the quartile 1 of math grades at the end of the year is 70, what does that mean about the student/class data? (Interpret)
25% of the students in the class scored below a 70 for a math grade.
You record the age, marital status, and earned income of a sample of 1463 women. The number and type of variables you have recorded is:
2 quantitative, 1 categorical.
Make a dotplot of the following number of planets in the galaxies around the milky way:
9, 6 , 8, 6, 8, 7, 9, 4, 3, 11, 6, 7, 8
*check for scale and accuracy
What type of graph displays data in quartiles?
Box Plot
When looking at a graph, if the mean is GREATER than the median, that indicates that the shape of the graph is....
right skewed
The five number summary is as follows:
Minimum: 5
Quartile 1: 7
Median: 13
Quartile 3: 15
Maximum: 20
What is the INTERQUARTILE range?
8
Create a boxplot for the following:
minimum: 2, quartile 1: 5, median, 7, quartile 3: 15, maximum: 18
What SHAPE does this data have?
Right skewed
*check scale on box plot
Calculate the upper and lower fence (outliers) of the following number of planets in the galaxies around the milky way:
9, 6 , 8, 6, 8, 7, 9, 4, 3, 11, 6, 7, 8
Lower: 2.25
Upper: 12.25
What type of graph displays data in intervals with frequency on the y-axis?
Histogram
Find the mean AND standard deviation of the following:
10, 20, 34, 54, 88
Mean: 41.2
Standard Deviation: 30.9
The five number summary is as follows:
Minimum: 5 Quartile 1: 7
Median: 13 Quartile 3: 15
Maximum: 20
Find the UPPER outlier fence:
The roster of the Philadelphia Eagles includes 7 defensive linemen. Their weight in pounds were 321, 285, 300, 285, 286, 293, and 298. Calculate the mean AND median.
Describe the SHAPE
Mean: 295.4 pounds
Median: 293
Slighlty right skewed.
FREE SPACE!
What is Miss King's Office Hours Code AND what time are office hours open in the morning?
AKING
and
7:30-8:30
Which type of graph is best if you want to see the actual data values in the display?
Stem Plot
How do you calculate the mean of a set of numbers WITHOUT a calculator?
Add all the values and divide the total by how many data points you have.
Draw a STEMPLOT for the following data:
488, 507, 510, 526, 527, 529, 530, 534, 534
AND
What is the Median?
*Check stemplot for key and accuracy
*Median is 527
What is the difference between range and standard deviation?
range is the maximum minus the minimum
and standard deviation is the count of distance from the CENTER of the graph.
Are there any outliers in this data set?
10, 20, 34, 54, 88
(Show your work for credit)
NO