1. Y = MX + B A. LINEAR REGRESSION EQUATION B. CORRELATION COEFFICIENT

A. IF THE CORRECT ANSWER IS A ONLY B. IF THE CORRECT ANSWER IS B ONLY C. IF THE CORRECT ANSWER IS BOTH A AND B D. IF THE CORRECT ANSWER IS NEITHER A AND B 2. MEASURE OF DISPERSION A. RANGE B. VARIANCE

A. IF THE CORRECT ANSWER IS A ONLY B. IF THE CORRECT ANSWER IS B ONLY C. IF THE CORRECT ANSWER IS BOTH A AND B D. IF THE CORRECT ANSWER IS NEITHER A AND B 3. SIMPLEST MEASUREMENT OF DISPERSION A. STANDARD DEVIATION B. RANGE

A. IF THE CORRECT ANSWER IS A ONLY B. IF THE CORRECT ANSWER IS B ONLY C. IF THE CORRECT ANSWER IS BOTH A AND B D. IF THE CORRECT ANSWER IS NEITHER A AN B 4. AREA UNDER THE NORMAL CURVE A. PROBABILITY B. VARIANCE

A. IF THE CORRECT ANSWER IS A ONLY B. IF THE CORRECT ANSWER IS B ONLY C. IF THE CORRECT ANSWER IS BOTH A AND B D. IF THE CORRECT ANSWER IS NEITHER A AND B

5. 1 A. PERFECT NEGATIVE CORRELATION B. NO CORRELATION

A. IF THE CORRECT ANSWER IS A ONLY. B. IF THE CORRECT ANSWER IS B ONLY C. IF THE CORRECT ANSWER IS BOTH A AND B D. IF THE CORRECT ANSWER IS NEITHER A AND B 6. CORRELATION A. PERFECT POSITIVE CORRELATION B. NO CORRELATION. A. IF THE CORRECT ANSWER IS A ONLY. B. IF THE CORRECT ANSWER IS B ONLY C. IF THE CORRECT ANSWER IS BOTH A AND B D. IF THE CORRECT ANSWER IS NEITHER A AND B 7. M A. Y-INTERCEPT B. SLOPE

A. IF THE CORRECT ANSWER IS A ONLY. B. IF THE CORRECT ANSWER IS B ONLY C. IF THE CORRECT ANSWER IS BOTH A AND B D. IF THE CORRECT ANSWER IS NEITHER A AND B 8. STATEMENTS FIRST: MODE IS BEST TO USE IF 50% OF THE DISTRIBUTION IS WANTED SECOND: MEAN IS BEING DEFINED AS THE SUM OF VALUES IN THE GROUP DIVIDED BY NUMBERS OF VALUES A. IF BOTH STATEMENTS ARE TRUE B. IF BOTH STATEMENTS ARE FALSE C. IF THE FIRST IS TRUE AND THE SECOND IS FALSE D. IF THE FIRST IS FALSE AND THE SECOND IS TRUE 9. STATEMENTS FIRST: CENTRAL TENDENCY IS A VALUE IN THE DISTRIBUTION IN WHICH THE DATA TENDS TO CLUSTER SECOND: MEDIAN IS CONSIDERED AS THE MOST RELIABLE MEASURE OF CENTRAL TENDENCY A. IF BOTH STATEMENTS ARE TRUE B. IF BOTH STATEMENTS ARE FALSE C. IF THE FIRST IS TRUE AND THE SECOND IS FALSE D. IF THE FIRST IS FALSE AND THE SECOND IS TRUE 10. STATEMENTS FIRST: THE SYMBOL FOR POPULATION MEAN IS X SECOND: THE SYMBOL USED TO REPRESENT SAMPLE VARIANCE IS S²

A. IF BOTH STATEMENTS ARE TRUE B. IF BOTH STATEMENTS ARE FALSE C. IF THE FIRST IS TRUE AND THE SECOND IS FALSE D. IF THE FIRST IS FALSE AND THE SECOND IS TRUE

11. STATEMENTS FIRST: IF A DISTRIBUTION HAS TWO MODES, IT IS KNOWN AS MULTIMODAL SECOND: IF EACH DATA APPEARED ONCE ONLY, THEN THE MODE IS 0

A. IF BOTH STATEMENTS ARE TRUE B. IF BOTH STATEMENTS ARE FALSE C. IF THE FIRST IS TRUE AND THE SECOND IS FALSE D. IF THE FIRST IS FALSE AND THE SECOND IS TRUE 12. STATEMENTS FIRST: SPREAD IS ANOTHER TERM FOR THE MEASURE OF DISPERSION SECOND: VARIANCE IS THE MOST RELIABLE MEASURE OF DISPERSION

A. IF BOTH STATEMENTS ARE TRUE B. IF BOTH STATEMENTS ARE FALSE C. IF THE FIRST IS TRUE AND THE SECOND IS FALSE D. IF THE FIRST IS FALSE AND THE SECOND IS TRUE

13. STATEMENTS FIRST: CORRELATION CAN BE USED TO DETERMINE THE DEGREE OF RELATIONSHIP BETWEEN VARIABLES SECOND: COEFFICIENT CORRELATION RANGES FROM 0-1 A. IF BOTH STATEMENTS ARE TRUE B. IF BOTH STATEMENTS ARE FALSE C. IF THE FIRST IS TRUE AND THE SECOND IS FALSE D. IF THE FIRST IS FALSE AND THE SECOND IS TRUE

14. STATEMENTS FIRST; STANDARD DEVIATION IS THE SQUARE ROOT OF THE VARIANCE SECOND: DISPERSION GIVES US THE IDEA OF THE DEGREE OF SCATTERING OF THE DATA IN THE DISTRIBUTION

A. IF BOTH STATEMENTS ARE TRUE B. IF BOTH STATEMENTS ARE FALSE C. IF THE FIRST IS TRUE AND THE SECOND IS FALSE D. IF THE FIRST IS FALSE AND THE SECOND IS TRUE

15. CHARACTERISTICS OF THE NORMAL CURVE I. CURVE IS ASYMMETRICAL ABOUT MEAN II. TAILS OF THE NORMAL CURVE ARE ASYMPTOTIC RELATIVE TO THE HORIZONTAL LINE III. TOTAL AREA UNDER THE NORMAL CURVE IS EQUAL TO 1 IV. NORMAL CURVE ARE SUBDIVIDED INTO THE THREE STANDARD DEVIATION

A. I, II, AND III ONLY B. II, III, AND IV ONLY C. I, II, III, AND IV D. I, II, AND IV ONLY E. I, III, AND IV ONLY

16. IN MAT 3 DEPARTMENTAL EXAMINATION, THE MEAN SCORE IS 64 IN THE STANDARD DEVIATION IS 12. THE SCORE OF A STUDENT WHOSE Z SCORE IS -2.5 A. 34 B. 33 C. 32 D. 35

17. FIND THE AREA UNDER THE NORMAL CURVE BETWEEN Z= -2.67 AND Z= 0.85 A. 0.7724 B. 0.3032 C. 0.7985 D. 0.4692

18. FIND THE AREA UNDER THE NORMAL CURVE LESS THAN 1.82 A. 0.8656 B. 0.9656 C. 0.4656 D. 0.0344

19. IN MAT 3 DEPARTMENTAL EXAMINATION, THE MEAN SCORE IS 64 AND THE STANDARD DEVIATION IS 12. FIND A CORRESPONDING Z SCORE OF A STUDENT WHOSE SCORE IS 93 A. + 2.42 B. 2.43 C.-2.42 D. 2.45