Statistics Quiz 8

Random numbers are also called__________________?

There are ________ important bases of classification?

Binomial distribution is symmetrical when P=___________________?

A table has at least __________ part?

In w.o.r 2?x=_____________________?

Correlation is _____________ of regression coefficients?

Non-random sampling is also called___________________?

The normal distribution is_________?

If right tail is longer than left tail then distribution is called _________________?

Geometric means of X1 and X2 is________________?

Correlation coefficient is ___________ with respect to x and y?

A random variable is that whose value is determined by the outcome of _________________?

The sum of the squares of deviations is the least when measured from____________?

The Harmonic Mean of two number is ?a? and ?b? is given by ____________?

Analysis of Variance (ANOVA) is a test for equally of______________?

In binomial experiment, the probability of success is denoted by __________________?

We must arrange the data before calculating _________?

A contractor employs 20 male, 15 female and 5 children in his factory. Male wages are Rs. 10 per day, female Rs. 8 per day, and children Rs. 3 per day. The weighted x of wages paid per day will be_____________?

For a binomial distribution?

If _________ then the distribution is positively skewed?

If Y=?8X ? 5 and SD of X is 3, then SD of Y is _______________?

A measure of dispersion is always ________________?

The graphs of the symmetrical distribution is _____________?

suppose for 40 observation, the variance is 50. If all the observation are increased by 20, the variance of these increased observation will be_________?

A random variable may be _____________?

Village Patwari collecting the data about cotton crops is the example of_____________?

If n = 400 and P=.69 then 90% C.I for P is _________________?

When X denotes the number of success in binomial experiment, it is called ________________?

Frequency table is an arrangement of data by classes together with their _______ class frequencies?

E(ax + b) = A E(x) +___________________?

You asked five of your classmates about their height. On the basis of this information, you stated that the average height of all students in your university or college is 67 inches. This is an example of ?

Normal distribution has ______ parameter?

_______are used to represent data classified on qualitative?

Single number which shows ___________ changes in a phenomenon is called an Index Number?

Consumer price Index Number also called _________ is designed to measure changes?

___________ data are collected for the first time.

If an event consists of only one sample point is called _____________?

To perform a Runs test for randomness the data must be_______________?

This index measure the change from month to month in the cost of a representative ?basket? of goods and services of the type bought by a typical household?

Data published by Bureau of statistics in its publications are _______________?

The difference between the upper and lower class boundaries of a class are know as _________________?

________ paper is needed to show the graphs of frequency distribution?

Three brands of coffee are rated for tasted on a scale of 1 to 10. Six persons are asked to rate each brand so that there is a total of 18 observations.The appropriate test to tasted equally good is_____________?

Variance is always calculated from___________?

The average of first n natural numbers is_______________?

If a card is chosen from a standard deck of cards, what is the probability of getting a five or a seven ?

In natural Sciences, statistics____________.

A time series is an arrangement of data according to __________________?

If c is non-random variable, the E(C) is_______________?

Data regarding opinions of consumers about some product obtained through lady workers are ____________?