 # STT206

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STT206

1 / 50

Sampling is simply a process of learning about the __________________ on the basis of a sample drawn from it

2 / 50

The first moment about mean is given by [ H_{1}=]

3 / 50

What is the range of the data 5, 2, 2, 3, 7, 8, 18, 1 ?

4 / 50

The difference between the highest observation and the lowest observation is called ________

5 / 50

Distributions in which there are only one variable are called _________

6 / 50

Variables that assume any value within an interval or have the property of infinite divisibility are _____ variables

7 / 50

Correlation is used to determine the extent at which the variable are correlated is called_________ correlation

8 / 50

The branches of statistics that deals with mutual dependence or inter-relationship of two or more variables is _____

9 / 50

The method of least squares dictates that we choose a regression line where the sum of the square of deviations of the points from the line is _______

10 / 50

The payoffs associated with each possible outcome in a decision problem should be listed in ______ table

11 / 50

A bus starts with 6 people and stops at 10 different stops, how many different ways can the 6 people depart if any passenger can depart at any bus stop ____

12 / 50

A method that involves conference techniques by which a group of people attempts to find solution for specified problems is known as _______

13 / 50

Compute the harmonic mean of 5, 6 and 7

14 / 50

Data collected on a particular variable or set of variables over time is called _________

15 / 50

Analysis of Variance (ANOVA) is a test for equality of _____

16 / 50

The measure of the degree of uniformity of observations in a given set of data can be said to be _____

17 / 50

Variables whose values are fractional and are points on an internal are called _________

18 / 50

Variables whose values are whole numbers or integers are called _________

19 / 50

Correlation values ranges from ________

20 / 50

A bus starts with 6 people and stops at 10 different stops, how many different ways can the 6 people depart if any passenger can depart at any bus stop _________

21 / 50

The boundaries separating the items in a given distribution into quarters are called ______

22 / 50

When the correlation coefficient r, equals zero, then __________

23 / 50

Variables whose values are whole numbers or integers are called ________

24 / 50

Consider a set of data on monthly sales of a company�??s product, the mean of which was found to be N240,000; the mode found to be N135,000; and the standard deviation found to be N85,000. Calculate Coefficient of skewness

25 / 50

Distributions involving two discrete variables are called ___________

26 / 50

Housing unit, number of students in a class, number of goals scored and number of cars are examples of ______ variable

27 / 50

Like other quartiles, the median quartile is at what percent mark:_____%

28 / 50

When the correlation coefficient r, equals zero, then __________

29 / 50

Multiple regression is also known as _____ regression

30 / 50

A logical approach used in an investigation to indicate possible alternatives or choices from which an acceptable solution may be derived is called______

31 / 50

Data collected from CBN website are called ________ data

32 / 50

The degree of randomness of selection would depend upon the process of selecting the items from the _________

33 / 50

Compute the harmonic mean of 5, 6 and 7

34 / 50

Scale that has all the properties of the nominal, ordinal and interval scales including the additional property of having an absolute zero point is known as ____ scale

35 / 50

_______ is value of the sample statistic which is taken as an approximation of the parameter value

36 / 50

Correlation values ranges from _________

37 / 50

Method of forecasts used to generate the general picture (or trend) behind a set of data or time series is ______________

38 / 50

The measure of dispersion that ensures highest degree of reliability is ___________

39 / 50

Forecasts concerning the near future are known as ______ forecasts

40 / 50

A summary measure that describes any given characteristic of the population is known as a ________

41 / 50

Hypothesis testing starts with a statement about population parameters such as _________

42 / 50

The values of (xi,yi) are given as (1,2), (2,4), (3,8), (4,7), (5,10), (6,5), (7,14), (8,16), (9,2), (10,20) find the value of summation yi

43 / 50

_____________________ provides various types of statistical information of either Qualitative or quantitative nature

44 / 50

The second quartile is equivalent to the _________

45 / 50

Forecasts based solely on past and present values of the variable to be forecast is called_______ forecasts

46 / 50

Calculate the mean of the date in the table below

47 / 50

Quantitative variable can be classified into _________

48 / 50

The values of (xi,yi) are given as (1,2), (2,4), (3,8), (4,7), (5,10), (6,5), (7,14), (8,16), (9,2), (10,20) find the value of summation yi

49 / 50

ANOVA means _______

50 / 50

The values of (xi,yi) are given as (1,2), (2,4), (3,8), (4,7), (5,10), (6,5), (7,14), (8,16), (9,2), (10,20) find the value of summation xi

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