WorksheetsDescriptive Statistics- Part 1
Total questions: 20
Worksheet time: 11mins
Data is defined as
distinct pieces of information
similar pieces of data
similar pieces of data
finding wrong information
Quantitive data takes on _____ values
proper
normal
numeric
odd
Data type:
Ratings on a survey (Poor, Ok, great)
quantitative
categorical
Data type:
Income
Categorical
quantitative
Data do not have an order or ranking
ordinal
nominal
data take on a ranked ordering
ordinal
nominal
Discrete data type is
data can be split into smaller and smaller units, and still a smaller unit exists
data that only takes on countable values
data that comes in order
data that cannot be split into smaller units
data can be split into smaller and smaller units, and still a smaller unit exists
data types
discrete
continuous
nominal
type of dog breeds (German Shepard, Collie, etc) is
nominal
discrete
Four aspects to Quantitative data:
measures of center->shape of data->measures of spread->outliers
measures of center->shape of data->measures of spread->median
measures of center->shape of spread->measures of data->outliers
measures of bottom->shape of data->measures of spread->outliers
None of above
mean, median, mode
measures of data
measurements
measures of center
calculator for statistics
calculator for statistics
The median splits our data so that ___% of our values are lower and____% higher.
(a)
If we have ____ numbers, the median is the number in the direct middle.
odd
even
normal
If we have ____ numbers, the median is the average of the two values in the middle.
regular
odd
even
most frequently observed value in our dataset.
median
mode
repetitive
mean
What is the mode?
1, 1, 2, 2, 3, 3, 4, 4, 5, 5
2
3
1, 2, 3, 4, 5
No mode
universal language used by academic and industry professionals to convey mathematical ideas.
notation
connotation
problem
datasets
represented by capital letters
Random Variables
Defined variables
What is aggregation?
way to turn odd numbers into fewer numbers
way to turn even numbers into fewer numbers
way to turn all numbers into fewer numbers
way to turn multiple numbers into fewer numbers
Is summation is a common aggregation?
not sure
yes
no
