Statistical or Not
Is this a statistical question? How many students are wearing Jordan's in this class?
No.
What is the mode? 1.06, 9.3, 59.59, 6.01, 25.17, 1.06, 6, 1.06, 0.7
1.06
What is the range? 5, 10, 17, 19, 35.3, 3, 4, 56, 7, 1.7
56 - 1.7 = 54.3
What fraction or percentage of data is in each of the 4 sections of a box and whisker plot.
25%
Find the minimum: 5 10 15 20 25
5
Should a statistical question have a single answer?
No, it needs multiple answers.
What is the median? 93, 47, 37, 49, 25, 12, 13, 57
(37 + 47)/2 = 42
What is the median? 33, 4, 5, 6, 10, 15, 17, 18, 19, 21, 29
4 5 6 10 15 17 18 19 21 29 33: 17 = med
Can you find the mean using a Histogram?
no
What is the maximum: 5 10 15 20 25
25
Is this a statistic question? What is the favorite sport of Redwood students?
Yes
What is the median? 103, 2, 23, 156.5, 105.5, 145
104.25
What is the upper quartile? 29 34 39 43 73 91 198
91
What type of graphs have we used a frequency table?
Dot Plot and Histograms
What is the lower quartile? 1 2 3 4 4 5 6
2
IS this a statistical question? Does the Watson Family watch TV?
no
Whats the mean? 1, 1, 2, 3, 4, 4, 5, 6, 7, 8
41/10 = 4.1
What is the upper quartile? 35, 49, 53, 69, 69, 77, 84
77
What is the first step you need to do to make a box plot?
order the data
What is upper quartile? 1 2 3 4 5 6
5
Is this statistical? What is the weight of 11th grade students in America?
yes
What is the average grade for a student who's grades are: 13, 27.3, 69, 69, 23, 97.
49.7
Find the IQR of the data set. 30, 45, 46, 72, 78, 89, 99, 100, 100
Median = 78 q1 = 45.5 q2 = 99.5 iqr = 99.5-45.5 = 54
What are the measures of center that you can find or calculate by looking at a dot-plot?
Mean, Median, Mode, MAD, Range
What is the IQR of the data-set 4, 5, 6, 7, 8, 9, 10
4