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Statistics Quiz 2

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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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