Elementary Terms
Types of Data
Measures
True or False
Statistical Methods
100

Entities on which data is collected

units of observation/ individuals

100

Data that use numeric values to indicate "how much" or "how many"

quantitative data

100

when an outlier is added to a data set, which of these measurements will usually change the most: the mean, the median or the range?

mean and range

100

The purpose of statistics is to prove specific outcomes

False

100

A tabular summary of data showing the number of items in each of several non-overlapping classes

 frequency distribution

200

A characteristic of interest for the elements

 a variable

200

Data that can be grouped by specific categories

categorical data

200

you surveyed 25 of your classmates on their favorite ice cream and found that 20% of them liked chocolate the best. how many students voted for chocolate ice cream?

5 students

200

Every statistical method can be used regardless of what type of data measurement you have (nominal, ordinal, interval, etc)

False

200

A chart that shows relative frequency of each class

pie chart

300

A subset of the population

a sample

300

A level of measurement where there is a true zero and equal intervals between neighboring points

Ratio

300

find the interquartile range for the data set. Round your answer to the nearest hundredth.. 1.75,2.5,3.25,4.15,3.85

1.9

300

The process of conducting a survey to collect data for the entire population is called a census.

True

300

If a large amount of the data lies in one direction (has a long tail) to the right, this data set is said to be

positively skewed or skewed to the right

400

The art and science of collecting, analyzing, presenting, and interpreting data

statistics

400

It is a level of measurement which is placed into some kind of order or scale

ordinal data

400

There are 5 whole numbers in a data set. The mean of the data is 10. the median and mode are both 9. the least number in the data set is 7, and the greatest is 14. What are the numbers in the data set

7,9,9,11 and 14

400

You should always take very small samples. That way you have less data to have to enter and work with!

FALSE ....why?

400

The value of the standard deviation for a dataset that is all the same is..

zero

500

A term that describes how a score compares to other scores from the same set

percentile

500
There are seven children in the Arthur family, including one set of twins. The youngest child is a 6 years old, and the oldest is 16 years old. The mean of their ages is 11 years, the median is 10 years, and the mode is 15 years. What are the ages of Arthur children? How old are the twins?

6,7,8,10,15,15 and 16..the twins are 15 years old

500

The width of the bars of each class should be the same in the bar graph?

true

500
A distribution that shows the number of data items with values less than or equal to the upper class limit of each class
What is a cumulative frequency distribution
M
e
n
u