Statistics Quiz 8

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

A random variable may be _____________?

The average of first n natural numbers is_______________?

Variance is always calculated from___________?

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

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 ?

We must arrange the data before calculating _________?

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

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

The graphs of the symmetrical distribution is _____________?

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

In natural Sciences, statistics____________.

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

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_____________?

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_____________?

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

A measure of dispersion is always ________________?

A table has at least __________ part?

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?

For a binomial distribution?

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

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

Random numbers are also called__________________?

Non-random sampling is also called___________________?

Geometric means of X1 and X2 is________________?

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

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

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

Correlation is _____________ of regression coefficients?

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

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

There are ________ important bases of classification?

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

Normal distribution has ______ parameter?

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

If _________ then the distribution is positively skewed?

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

Correlation coefficient is ___________ with respect to x and y?

The normal distribution is_________?

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

___________ data are collected for the first time.

_______are used to represent data classified on qualitative?

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

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

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

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

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

Binomial distribution is symmetrical when P=___________________?

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

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