Statistics Quiz 8

Binomial distribution is symmetrical when P=___________________?

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

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?

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

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

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

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

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_____________?

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

The normal distribution is_________?

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

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

Non-random sampling is also called___________________?

We must arrange the data before calculating _________?

Variance is always calculated from___________?

In natural Sciences, statistics____________.

A random variable may be _____________?

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_____________?

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

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

___________ data are collected for the first time.

The graphs of the symmetrical distribution is _____________?

Normal distribution has ______ parameter?

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 measure of dispersion is always ________________?

Correlation coefficient is ___________ with respect to x and y?

Geometric means of X1 and X2 is________________?

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

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

There are ________ important bases of classification?

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

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

The average of first n natural numbers is_______________?

_______are used to represent data classified on qualitative?

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

A table has at least __________ part?

Correlation is _____________ of regression coefficients?

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

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

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

If _________ then the distribution is positively skewed?

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

For a binomial distribution?

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

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

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

Random numbers are also called__________________?

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

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