Statistical or Not
what is the range of this data?
5, 10, 17, 19, 35, 3, 4, 56, 7, 1
What is 56 - 1 = 55?
What fraction or percentage of data is in each of the 4 sections of a box and whisker plot.
25%
Find the lower extreme 5, 10, 15, 20, 25
What is 5?
what is the median 33, 4, 5, 6, 10, 15, 17, 18, 19, 21 29
What is 17?
Can you find the mean using a Histogram?
You can approximate the mean, but you can not tell the actual mean unless you have all of the data points.
What is the upper extreme? 5, 10, 15, 20, 25
What is 25?
Is this a statistic question? What are the favorite ice cream flavors of Mrs. Keely's class?
Yes
What is the median? 103, 2, 23, 156, 105, 145
What is 104?
what is the upper quartile? 29, 34, 39, 43, 73, 91, 198
What is 91?
What does the interquartile range represent in a box and whisker plot?
The interquartile range is the middle 50% of the data.
What is the lower quartile? 1, 2, 3, 4, 4, 5, 6
What is 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 lower quartile? 35, 49, 53, 69, 69, 77, 84
What is 49?
What is the first step you need to do with the data to make a box plot?
order the data
What is the upper quartile? 1, 2, 3, 4, 5, 6
What is 5?
Is this statstical? What are the heights of the 5th grade students at Lake Windward Elementary School?
yes
If a student has the following test grades: 91, 94, 89, 96, and would like to have a 93 average, what would the student need to score on his next test?
What is 95?
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
What is the IQR of the data-set? 4, 5, 6, 7, 8, 9, 10
What is 4?