Republic of the Philippines

Department of Education
BUTAY INTEGRATED SCHOOL

3RD QUARTER EXAMINATION

GRADE 11-STATISTICS AND PROBABILITY
I. Encircle the letter of the correct answer
1. It is the science that deals with the collection, organization and presentation,
analysis and interpretation of all kinds of data pertinent to the study being
considered.
a. Algebra b. Arithmetic c. Statistics d. Probability
2. It involves generalizing, forecasting and recommending solutions and
intervention about the study.
a. Organization and presentation of data c. Analysis of data
b. Interpretation of data d. Collection of data
3. What is the arrangement of data in increasing or decreasing order?
a. Array b. Range c. Series d. Sequence
4. What is the average of all the values in a set of data?
a. Mean b. Mode c. Outlier d. Median
5. What do you call the middle value of a set of data?
a. Mean b. Mode c. Outlier d. Median
6. The most frequent value in a set of data is called the _____.
a. Mean b. Mode c. outlier d. median
7. What is the value that is too far from the other values from a set of data?
a. Range b. Outlier c. Class Width d. Class interval

8. What does the symbol ∑ stands for?

a. Sum b. Difference c. Quotient d. Product
9. The difference between the lowest value and the highest value is the _____.
a. Array b. width c. range d. length
10. The _____ is the average of the highest and the lowest value in an interval.
a. Frequency b. class mark c. class interval d.
class boundary
11. The _____ is always the half step lower than the lowest values, and a half step
higher than the highest value.
a. Frequency b. class mark c. class interval d.
class boundary
12. The number of occurrences in a certain interval is what you call the _____.
a. Frequency b. class mark c. class interval d.
class boundary
range
13. is the formula of :
class interval

a. Class mark b. class size c. class boundary d. frequency

 ( )
n
−cf b
14. 2 is the formula of :
L+ i
fm
a. Mean b. median c. mode d. range

15. This is the method where a set of questions is provided by the researcher, and
the data is provided by the respondents.
a. Experiment method c. Interview method
b. Questionnaire method d. Document method

II. ENUMERATION. Give what is being asked.

[1-4] 4 ESSENTIAL PROCESSES IN STATISTICS
1.
2.
3.
4.

[5-9] METHOD OF COLLECTING DATA

5.
6.
7.
8.
9.

[10-12] DIFFERENT WAYS OF PRESENTING DATA

10.
11.
12.

[13-15] MEASURES OF CENTRAL TENDENCY

13.
14.
15.
III. Using the table, give what is asked in each question.

Monthly Electrical Consumption

MONTH CONSUMPTION MONTH CONSUMPTION
(kWh) (kWh)
January 29 July 36
February 32 August 36
March 43 September 35
April 45 October 31
May 43 November 29
June 38 December 26

1. What is the mean electric consumption for the first six months?
2. What is the median for the whole year for the consumption of electricity?
3. Consider the consumption from January to November. What is the median?
4. What is the month of the median?
5. What is the mode for the whole year of consumption?
6. What month(s) do the modes appear?
7. What is the mean for the whole year?
8. Are the mean, median and the mode for the whole year are equal?
9. What can you say about the measures of central tendency from the given data?
10. At what month do you have the highest consumption?

IV. Given the set of data, {8, 5, 7, 10, 15} , determine whether each statement is always
true (AT), sometimes true (ST), or never true (NT). Write AT, ST, or NT on the blank
before each number.
_____1. If a value eight is added to the group, then the median and the mode will be
equal.
_____2. If a value less than or equal to eight is added to the group, then the mean
would decrease.
_____3. If a value less than or equal to eight is added to the group, then the median
would decrease.
_____4. If a value greater than or equal to 10 is added to the group, then the mean
would increase.
_____5. If a value between 5 and 15 is added to the group, then the mean would
either increase or decrease.
 V. On the blank before each item, write T if the statement is correct and F if it is
incorrect.
_____1. The range takes into consideration the values in between the highest and
the lowest values in a set of data.
_____2. The average deviation is always positive.
_____3. The variance can have a negative value.
_____4. The standard deviation can have a negative value.
_____5. The variance has a squared unit.
_____6. The range is not affected by the presence of an outlier.
_____7. The variance and the standard deviation are affected by the presence of an
outlier.
_____8. The variance will always have a larger value than the standard deviation.
_____9. If the standard deviation is greater than 1, then the mean is greater than the
standard deviation.
_____10. If the standard deviation is greater than 1, then the standard deviation is
greater than the variance.

Prepared by:
Ritchelle M. Apostol
Teacher 1

Checked by:
Pablo M. Banabal, Jr
School Principal 1
 Republic of the Philippines
Department of Education
BUTAY INTEGRATED SCHOOL

3RD QUARTER EXAMINATION

GRADE 11-EMPOWERMENT TECHNOLOGY
I. Identify the following Statements. Write T if the statement is correct, and write F if it
is false.
_____1. Add friends you don’t know in real life.
_____2. The internet is a public place, and it is up to you to protect yourself.
_____3. Avoid visting trusted websites.
_____4. Make online purchases from secure sites
_____5. For the software, use pirated ones
_____6. Do not copy, share or alter without seeking information
_____7. Do share your password with anyone.
_____8. Be mindful of what you share online and what site you share it to.
_____9. Reply or click links from suspicious emails.
_____10. Do not just accept terms and condition, read it.
_____11. Do talk to strangers whether face to face or online.
_____12. The internet is defined as the information superhighway.
_____13. Do not assume that the work is copyrighted.
_____14. Review and retain licensing agreements.
_____15. Copy, share or alter without seeking information.

II. Give the meaning of the following terms. (10pts each)

1. Digital Native
________________________________________________________________
________________________________________________________________
________________________________________________________________
________________________________________________________________
________________________________________________________________
 2. Information and Communication Technology (ICT)
________________________________________________________________
________________________________________________________________
________________________________________________________________
________________________________________________________________
________________________________________________________________
3. Social Media
________________________________________________________________
________________________________________________________________
________________________________________________________________
________________________________________________________________
________________________________________________________________
III. What are the advantage and disadvantages of having technology in these present
times? (10pts)
Advantage___________________________________________________________
___________________________________________________________________
___________________________________________________________________
Disadvantage________________________________________________________
___________________________________________________________________
___________________________________________________________________

Prepared by:
Ritchelle M. Apostol
Teacher 1

Checked by:
Pablo M. Banabal, Jr
School Principal 1