In a one whole sheet of paper answer the following question.( show your solution)
1. It is an estimation of a value within two known values in a sequence of values.
A) Quartiles B) Measure of Position o C) Linear Interpolation o D) Ungrouped Data
2. The upper quartile is equal to
A) 50th percentile . B) 3rd Quartile . C) 2nd Quartile , D) 10 Quartile
3. For the following list, find the 2nd quartile: -10, 1, -3, 12, 2,-8, 0
A) -8 0 B) 2 0 C) 0 0 D) 1
4. What is the lower quartile for the following data 3, 7, 1, 16, 7, 21, 31, 30, 27?
A) 5 0 B) 3 0 C) 7. D) 16
5. The upper quartile is equal to
A) 25% of data distribution 0 B) 50% of data distribution. C) 75% of data distribution
o D) 100% of data distribution
6) Calculate the 3rd quartile of the following data: 3, 13, 11, 11, 5, 4, 2.
A) 11 o B) 13 0 C) 4.D) 5
7. How to determine the lower, middle and the upper quartile of the given set of data?
A) by Mendenhall and sincich Method
B) by regrouping the data
C) by multiplying the result (difference) by the decimal part obtained
D) by Linear Interpolation Method
8. In a 250-item test, the passing mark is the 3rd quartile. What does it imply? to be
A) The students should answer at least 75 items correctly to pass the test.
B) The students should answer at least 50 items correctly to pass the test.
C) The students should answer at most 75 items correctly to pass the test.
D) The students should answer at most 50 items correctly to pass the test.
9. In a 40-item test, Analie got a score of 10 which is the first quartile. This means that:
A) she surpassed 25% of her classmates
B) her score is higher than 25% of her classmates.
C) she surpassed 75% of her classmates.
D) seventy-five percent of the class did not pass the test.
10. The 3rd quartile of the ages of 450 fourth year students is 17 years old. Which of the
following statements is true?
A) Most of the students are below 17 years old.
B) Seventy-five percent of the students are 17 years old and above.
C) Twenty-five percent of the students are 17 years old.
Di One hundred fifty students are younger than 17 years.