Review test Math 10

Which of these are the score points which divide a distribution into four equal parts?

• quartile

• decile

• percentile

• quantile

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.

Aby got a score of 55 which is equivalent to 70th percentile in a Mathematics test.

     Which of the following is not true?

• She scored above 70% of her classmates.

• Thirty percent of the class got scores of 55 and above.

• If the passing mark is the first quartile, she passed the test.

• Her score is below the 5th decile.

If Liz’s score in a 75-item test was the median score, what is her

     percentile rank?

• 35

• 37

• 50

• 75

In a 70-item test, Melanie got a score of 50 which is the third quartile. What does

     this mean?

• She got the highest score.

• Her score is higher than 25% of her classmates.

• She surpassed 75% of her classmates

• Seventy-five percent of the class did not pass the test.

How will you interpret the statement “The 1st quartile of the ages of 250 Grade 10

      students is 16 years old”?

• Most of the students are below 16 years old.

• Seventy-five percent of the students are 16 years old and above.

• Twenty-five percent of the students are 16 years old.

• One hundred fifty students are younger than 16 years.

In a class of 90 students, Brando obtained a score of 40 which was the lower

      quartile. What does this mean?

• His score is below the third decile.

• His score is above the first quartile.

• His score is above the 40th percentile.

• His score is below the third quartile.

In a 100-item test, the passing mark is the 3rd quartile. What does it imply?

• The students should answer at least 75 items correctly to pass the test.

• The students should answer at least 50 items correctly to pass the test.

• The students should answer at most 75 items correctly to pass the test.

• The students should answer at most 50 items correctly to pass the test.

Which of the following statements is NOT TRUE about the grouped data?

• The data are grouped according to classes with uniform intervals.

• The data are arranged in either increasing or decreasing order.

• The number of a specific data can be easily determined in the given set.

• The number of a specific data is generically labelled through the class frequency.

How do you get the cumulative frequencies of the tabular data?

• By adding the frequencies successively from the lowest class interval score to the highest.

• By subtracting the frequencies successively from the lowest class interval score to the highest.

• By multiplying the frequencies successively from the lowest class interval score to the highest.

• By dividing the frequencies successively from the lowest class interval score to the highest.