STA301 Midterm Preparation by Masters

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

Harmonic means is the reciprocal of?

Arithmetic mean

2. How many percent corresponds to Q1 if you will interpret it? Page 65 25th

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 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

Q9. 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 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

Q15. 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?

17. Relationship among the averages? Page 75

AM ≥ GM ≥ HM

Q18. 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

19. Which one is the formula of mid-range? Page 75

(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

22. Cumulative frequency distribution is called a ________type of a cumulative

frequency distribution. Page 37 Less than A histogram is consists of a set of adjacent rectangles whose bases are marked off by? Page 44 Class Boundaries

Q24. The median is?

The middle point

Q25. A frequency polygon is constructed by plotting frequency of the class interval and the?

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
2. In case of an open-ended class? Page 63

A median can-not be computed

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

Q25. 5. , It is most likely that this distribution is?

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

Q31. Histogram and histogram are?

Not same The _______ is often the preferred measure of central tendency if the data are severely skewed? Median