1-1 Descriptive and inferential statistics

Question 1

variable

Answer 1

characteristics or attributes that can be different values

Question 2

Data

Answer 2

measurements/observations that variables are

Question 3

random variables

Answer 3

variable values that are determined by chance

Question 4

Data set

Answer 4

collection of data values

Question 5

Datum

Answer 5

values on a data set

Question 6

population

Answer 6

number of subjects being studied

Question 7

census

Answer 7

data collected on all subjects in a population

Question 8

sample

Answer 8

group selected from population (subgroup)

Question 9

Descriptive statistics

Answer 9

summary of data that is presented

specific: weight loss from specific group of subjects

Question 10

inferential statistics

Answer 10

general of sample to population and making predictions

future, generalization

Question 11

Probability

Answer 11

chance of event occurring

Question 12

Hypothesis testing

Answer 12

decision making process for evaluating claims about a population based on info from a SAMPLE

Question 13

Statistics

Answer 13

Statistics is the science of
conducting studies to
collect, organize,
summarize, analyze, and
draw conclusions from data.

Question 14

three areas probability is used

Answer 14

insurance,gambling, weather forecast

Question 15

Why is information obtained
from samples used more often
than information obtained
from populations?

Answer 15

populations are too large. Cannot have every subject included.

Question 16

biased sample

Answer 16

sample that does not represent the population