Ccrg Unit 12 Statistics

What is the branch of mathematics dealing with the collection, organization, analysis, interpretation and presentation of data?

• Algebra

• Geometry

• Probability

• Statistics

This occurs when a sample is collected in such a way that some members of the intended population are less likely to be included than others.

• sampling error

• sampling bias

• random sampling

• clustered sampling

What is a characteristic of a sample?

• parameter

• statistic

• categorical variable

• numerical variable

What are characteristics that are defined by a number, such as age or weight?

• descriptive statistics

• inferential statistics

• categorical variables

• numerical variables

Say 'TRUE' or 'FALSE'
The median of an un-grouped data and the median when the same data is grouped are always the same

• TRUE

• FALSE

In a discrete data, what name is given to the item occurring most frequently?

• Median

• Mode

• Mean

• Frequency

For a data containing 15 items arranged in ascending order, what item is the median of the data

• 7th item

• 8th item

• 6th and 7th item 

• 7th and 8th item

What is the median of first 101 natural numbers?

• 51

• 50

• 52

• 53

• 20
• 30
• 40
• 60

Q1. What is the sum of 10 and 11?

• A) 21

• B) 10

• C) 16

• D) 76