Mastery Exam

What does a percentile indicate in a data set?

• the middle value

• the spread of data

• the frequency of occurrence of a value

• the position of a value in relation to the rest of the data

Which of the following is equal to the median score?

• 1st Quartile

• 3rd Quartile

• 5th Decile

• 75th Percentile

What measures of central tendency occurs most frequently in a sample?

• mean

• median

• mode

• variance

In which measure of position does the dataset divide into ten equal parts?

• decile

• median

• quartile

• percentile

What measures of positions divide a distribution into four, ten, and hundred equal parts?

• decile

• percentile

• quantiles

• quartiles

When identifying the quartile for ungrouped data, when do we use interpolation?

• When the result is zero

• When the result is undefined

• When the result is a whole number

• When the result is a decimal number

The computed value of the first quartile is 2.5. What will be the final value?

• The value is 2 after rounding up.

• The value is 3 after rounding up

• The value is 2 after rounding down.

• The value is 3 after rounding down.

Which of these formulas CAN NOT be used in getting the median score of an ungrouped set of data?

• C.

• D.

Linet is a candidate for honor. Her grade in mathematics is in the 9th decile. What does it mean?

• 90% of her classmates receive a grade lower than her grade.

• 90% of her classmates receive a grade greater than her grade.

• 10% of her classmates receive a grade that is lower than her grade.

• 10% of her classmates receive a grade that is greater than her grade.

What part of a statistical mini research summarizes the idea of the study in the fewest words possible?

• methodology

• significance of the study

• title of the study

• statement of the problem