Statistics Quiz 8

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

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

Random numbers are also called__________________?

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

A table has at least __________ part?

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

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

For a binomial distribution?

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

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_____________?

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

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

Correlation is _____________ of regression coefficients?

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

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

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

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

There are ________ important bases of classification?

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

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 ?

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

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

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

___________ data are collected for the first time.

_______are used to represent data classified on qualitative?

The normal distribution is_________?

A random variable may be _____________?

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

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 ________________?

Correlation coefficient is ___________ with respect to x and y?

The average of first n natural numbers is_______________?

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

Normal distribution has ______ parameter?

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

The graphs of the symmetrical distribution is _____________?

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

Binomial distribution is symmetrical when P=___________________?

Geometric means of X1 and X2 is________________?

Non-random sampling is also called___________________?

In natural Sciences, statistics____________.

Variance is always calculated from___________?

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

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

We must arrange the data before calculating _________?

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_____________?

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?

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

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