STA301 Midterm Data by Masters

MID TERM PREPARATION MEGA FILE · BY MASTERS · STA301 · (STATISTICS & PROBABILITY)

Q1. Harmonic means is the reciprocal of?

Arithmetic mean

Q2. How many percent corresponds to Q1 if you will interpret it?

Q3. What is the mode in the word MATHEMATICS?

T, A, M

Q4. The middle value of an ordered array of numbers is the?

Median

Q5. Geometric mean gives the equal weightage to ____ values?

All the observations

6. If 10% added to each value of variable, the geometric mean of new variable is

added by? 10%

7. The total number of observations, which are below a certain value are known

as? Cumulative frequency

8. The sum of deviations of the observation from their mean is? Always Zero
9. In a commutative frequency polygon, the cumulative frequency of each

class is plotted against?

Q10. If an observation in the date set is zero, then its geometric mean will be?

Zero

Q11. Data arrangement in order of magnitude is called?

Arrayed date

Q12. For a stem-and-lead display?

All of the above

Q13. The most frequent value in the data is called?

Mode

14. The mode value from raw data can be obtained by the help of? Dot plot
15. The value of the middle term in a ranked (ordered) data set is called the

Median

Q16. A list of 7 pulse rates is: 70,64,80,74,92,96,98 what is the median for this list?

Q17. Relationship among the averages?

AM ≥ GM ≥ HM

18. If we place a vertical mirror in the center of -------------- the left hand side

will be the mirror image of the right hand side? Symmetrical distribution

Q19. Which one is the formula of mid-range?

(x0+xm)/2

20. What is the mode for the following set of data (1,m,d,n,2,d,2,d,s,5,5,7)

2,d,5

Q21. What is the mode in the word TOMATO?

T and O

Q22. DE cumulative frequency is presented by?

Less than ogive

23. A histogram is consists of a set of adjacent rectangles whose bases are

marked off by? Class Boundaries

Q24. The median is?

The middle point

Q25. Frequency polygon is constructed by plotting frequencies against their?

Class marks

Q26. If the sum of reciprocal of the values of a data is 256.7 and the n=23, then harmonic mean will be?

1. 0895

Q27. In case of an open-ended class?

The distribution is always positively skewed

Q28. In the construction of a frequency distribution the steps are to?

29. The mean of a distribution is 23 the median is 24 and the mode is
30. 5. It

is most likely that this distribution is?

30. Which of the following comes first to make frequency distribution? Range