Measures of Center
Find the mode of: 10, 20, 15, 11
What is there is NO MODE.
Find the range of: 10, 6, 11, 14, 25, 13
What is 19?
Which measure is most affected by an outlier?
What is mean?
Which graph shows frequency of data divided into equal intervals?
What is histogram?
An experimenter takes a random sample of 28 birds from a population of 100, and 7 of the birds in the sample are canaries. Use this information to predict how many birds in the entire population are canaries.
What is 25?
Find the median: 8, 22, 15, 11, 10
What is 11?
Name any outliers: 37, 42, 38, 75, 40, 33
What is 75?
Which is the greatest measure of center for:
10, 15, 30, 10, 18, 10
What is the mean?
Which graph shows change over a period of time?
What is a line graph?
A swimming instructor at a community pool asked her students if they would be interested in an advanced swimming course, and 60% stated that they would. If there are 870 pool members, how many people can the instructor expect to take the course?
What is 522?
Find the median and mode: 25, 16, 18, 16, 24, 30
What is median 21 and mode 16?
Find the first and third quartiles : 12, 10, 14, 16, 8
What is Q1 = 9 and Q3 = 15?
Which measure of center best represents the data? Then find the measure of center.
22, 14, 22, 14, 20, 30, 40, 50, 45, 60
What is Median = 26?
Which graph allows you to easily find the mode of the data?
What is a line or dot plot?
A random survey of people at a mall shows that 22 prefer to take a family trip by car, 18 prefer to travel by plane, and 4 prefer to travel by bus. If 500 people are surveyed, how many should say they prefer to travel by plane?
What is 205?
Find the mean of: 10, 15, 22, 30, 45
What is 24.4?
Find the interquartile range: 10, 6, 22, 12
What is IQR = 9?
Find the mean of : 30, 40, 20, 100, 400
What is mean = 118?
Which graph is best to display the favorite cafeteria lunch item of the sixth-grade students?
What is a bar graph?
A store sells 4 main styles of pants:
Jeans - 25 Cargos - 10 Shorts - 15
The people who work in the store survey 50 customers at random. If 450 pairs of pants are to be ordered, how many should be jeans?
What is 225?
Mr. Santiago bowled 150, 148, 177 and 184. If he wants to average exactly 172, what must he bowl on the next game?
What is 201?
Find the measure of spread:
17, 52, 22, 43, 41
IQR = 28 and Range = 35?
Find the mean with and without the outlier:
50, 60, 70, 80, 200
What is mean with outlier = 92?
What is mean without outlier = 65?What consists of the 5 number summary?
What is median, Q1, Q3, Lower extreme and upper extreme?