A proposition on the ballot needs more than 50% support in order to be approved. A random sample of 120 likely voters is taken, and 76 of them (63%) say that they support the proposition.

a) The 63% is a/an:

• sample statistic
• population parameter
• observational unit
• variable

b) The sample size is:

• 50
• 76
• 120
• 63

c) Each likely voter that was surveyed is a/an:

• variable
• sample statistic
• observational unit
• population parameter

d) Whether or not the likely voter supports the proposition is a/an:

• observational unit
• variable
• sample statistic
• population parameter

e) All likely voters in the election is:

• the sample
• the parameter
• the population
• the statistic