Summative Test_1 - Quarter 4

These are values which divide a list of ordered numbers into four equal parts

• Quartiles

• Deciles

• Percentiles

What measure of position divides the distribution into ten equal parts?

• Quartiles         

• Deciles

• Percentiles

Percentiles divide the data set into __________ equal parts.

• 4

• 10

• 100

The median score is also the _________.

• 5^th decile

• first quartile    

• 75^th percentile

The lower quartile is equal to the _________.

• 2^nd decile

• 25^th percentile

• 3^rd quartile

In the given set of scores: 5, 4, 6, 2, 8, 11, and 9, the median score is 6. This statement is _______.

• True

• False

• Erroneous

Which of the following formulas is used in locating the position of the percentiles (Pi)  of ungrouped data?

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In the formula, n refers to the __________in the data set.

• number of elements

• number of quartiles

• position

16, 18, 20, 28, 37, 38, 45, 46, 50

In calculating the position of the fifth decile (D₅) in the given set of data, what is the value of i and n in the formula

• i = 5; n =10

• i = 5; n = 9      

• i = 5; n = 8

16, 18, 20, 28, 37, 38, 45, 46, 50

Which of the following is the correct representation in finding the position of the fifth decile?

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