Statistics Quiz 8

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

_______are used to represent data classified on qualitative?

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

If _________ then the distribution is positively skewed?

In natural Sciences, statistics____________.

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

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

We must arrange the data before calculating _________?

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

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

The graphs of the symmetrical distribution is _____________?

Normal distribution has ______ parameter?

Binomial distribution is symmetrical when P=___________________?

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

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

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

Correlation is _____________ of regression coefficients?

___________ data are collected for the first time.

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

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 ?

Variance is always calculated from___________?

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

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

Geometric means of X1 and X2 is________________?

A table has at least __________ part?

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

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

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

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

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

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

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

Random numbers are also called__________________?

There are ________ important bases of classification?

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

A random variable may be _____________?

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

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_____________?

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

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

For a binomial distribution?

The average of first n natural numbers is_______________?

Correlation coefficient is ___________ with respect to x and y?

A measure of dispersion is always ________________?

The normal distribution is_________?

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

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_____________?

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

Non-random sampling is also called___________________?