Statistics Quiz 2

1 / 50

**A?B means:_______________?**

2 / 50

**E(x1 ? x2)= ___________________?**

3 / 50

**The data collected by NADRA to issue National Identity cards are______________?**

4 / 50

**The sum of the deviations about the mean is always______________?**

5 / 50

**If y= ax + b the S.? D. of y is _______________?**

6 / 50

**If any value in the data is negative, then it is impossible to calculate _______?**

7 / 50

**Which of the following divides a group of data into four subgroups?**

8 / 50

**The algebraic sum of deviations from mean is_____________?**

9 / 50

**The median of numbers, 12, 22, 32,__(2n + 1)2 is given by______?**

10 / 50

**The height of a student is 60 inches. This is an example of________________?**

11 / 50

**Statistics Laws are true________________?**

12 / 50

**__________ are said to be exhaustive if they constitute the entire sample space?**

13 / 50

**When testing for randomness, we can use_____________?**

14 / 50

**If a card is chosen from a standard deck of cards, what is the probability of getting a diamond (?) or a club (?)?**

15 / 50

**In normal distribution Q.? D. ( quartile deviation)is equal to________?**

16 / 50

**A graph of cumulative frequency distribution is called ________________?**

17 / 50

**If x and y are Independent to each other the coefficient of correlation is _____________?**

18 / 50

**Which of the following is impossible in sampling ?**

19 / 50

**In binomial distribution n=6 and p=0.9, then the value of______________?**

20 / 50

**The probability of getting exactly three tails when three balanced coins are tossed once _______________?**

21 / 50

**The median of the data 2, 4, 10, 8, 6 is _______________?**

22 / 50

**The average monthly production of a factory for the first 8 months is 2,500 units, and for the next 4 months the production was 1,200 units. The average monthly production of the year will be_____________?**

23 / 50

**Experiment in which outcomes vary from trial to trial _________________?**

24 / 50

**Most of the recent developments in statistics arose to meet the needs of ____________?**

25 / 50

**In case of symmetrical distribution?**

26 / 50

**Continuous variable can assume __________ value?**

27 / 50

**The smallest individuals which constitute the entire population are called __________________?**

28 / 50

**Binomial distribution has _______ parameter?**

29 / 50

**A constant variable can take values______________?**

30 / 50

**For making voters lists in Pakistan we need _______________?**

31 / 50

**If p= 0.1 and n = 400 then mean _______________?**

32 / 50

**_________ is an estimate expressed by a single value?**

33 / 50

**In which distribution successive trials are without replacement:____________________?**

34 / 50

**Sum of dots when two dice are rolled is____________?**

35 / 50

**In a frequency distribution the last cumulative frequency is 500. Q3 must lie in_____________?**

36 / 50

**Variance remains unchanged by change of________________?**

37 / 50

**If we reject the null hypothesis, we might be making____________?**

38 / 50

**An events that contains the finite number point the sample space is called __________________?**

39 / 50

**For discrete random ?X?, the expectation of X i.e., E(x) is equal to:________________?**

40 / 50

**Which one of the following measurement does not divide a set of observations into equal parts ?**

41 / 50

**Lack of symmetry is called_______________?**

42 / 50

**Lowest value of variance can be________________?**

43 / 50

**Quartile deviation is not capable of manipulation______________?**

44 / 50

**There are ____________ probability sampling?**

45 / 50

**The Wilcoxon, Rank-Sum test used to compares_______________?**

46 / 50

**In normal distribution Q1=_________?**

47 / 50

**Use of Statistics in planning is ____________?**

48 / 50

**A_______ is the specific value of the statistic used to estimate the population parameter?**

49 / 50

**P(? ? ??x?? + ?)=_________?**

50 / 50

**Mean Deviation, Variance and Standard Deviation of the values 4, 4, 4, 4, 4, 4 is_________________?**

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