1 variable statistics
What do the following notations represent?
Q1, Q3, med, min, max
5-Number Summary
Q1 = lower quartile
Q3 = upper quartile
med = median
min = minimum
max = maximum
A box plot has the following values:
min = 1
Q1 = 4
med = 5
Q3 = 9
max = 12
What percent of the data is between 4 and 12?
75%
Given the explanation:
On average the cost of phones at Cell Phones R Us are $145.32.
Which measure of center was used to make this statement?
Mean
A Pink Floyd album that was turned into a movie.
What is "The Wall"?
Solve: 6r + 7 = 13 + 7r
r = -6
Find the median of the set 40, 33, 47, 26, 39, 51, 60, 28, 55, 64, 46
46
Given the following values of a box plot:
min = 1
Q1 = 4
med = 5
Q3 = 9
max = 12
What percent of the data is greater than 4?
75%
Given the statement:
More than half the students scored an 82 on the quiz.
Which measure of center was used to write the statement?
Median
In an alphabetical list of U.S. states, this would come last.
What is Wyoming?
Solve: (x/3) - 5 = -6
x = -3
Find the mean of the set 21 28 33 39 40 46 47 51 55 60 64
44
Given the following values of a box plot for test scores:
35 60 75 85 95
min Q1 med Q3 max
If 60 students took the test, how many made less than an 85?
45 students
Given the statement:
Typically the ages of high school students are 2.56 years from the mean.
What statistical measure was referenced when writing this statement?
Standard Deviation
This is twice the age of Mr. Bollettino + 4
100
Solve: 7(5a - 4) = 15
Answer in the form of a fraction
a = 43/35
What is the IQR of the set 69 71 90 100 75?
25
Given the following values of a box plot:
10 25 35 51 70
min Q1 med Q3 max
What percent of the values are between 25 and 51?
50%
From the list below: Sort the terms into either "Measures of Center" or "Measures of Spread".
Mean
Interquartile Range
Median
MAD
Standard Deviation
Measures of Center: Mean, Median
Measures of Spread: MAD, Interquartile Range, Standard Deviation
There is a pride of lions. There is a pod of dolphins.
What do you call a group of crows?
(Fitting for horror movies and Halloween.)
A murder.
Solve: (2/5)x + 11 = 15
x = 10
Find the 25th percentile (Q1) of the data 100 90 71 75 69
70
What percent of the values are contained within the Interquartile Range?
50%
There is a data set with a majority of the data near one value, and a few values that are a lot greater than the others.
What would the shape of this distribution be called?
Skewed Right
What does the character Gutbomb have for a head?
A hamburger.
Solve: 7x - 5 - x = -6
x = -1/6