Vocabulary Unit 9

A umber expressing the central or typical value in a set of data, in particular the mode, median, or (most commonly) the mean, which is calculated by dividing the sum of the values in the set by their number.

• sum

• mode

• average

not made or caused by humankind.

• authentic

• natural

• real

• globe

• world

• worldwide

the length of time for which a person,

animal, or thing exists

• lifeline

• lifetime

• lifespan

a period 100 years

• decade

• millenium

• century

antonym of survive

• live

• pull through

• perish

What word is synonym to upsurge

• rise

• decrease

• diminish

synonym of extreme

• maximum

• minimum

• base

the study of things that happened in the

past