Statistics Quiz 8

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_____________?

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

The normal distribution is_________?

We must arrange the data before calculating _________?

The average of first n natural numbers is_______________?

___________ data are collected for the first time.

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

A table has at least __________ part?

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

Normal distribution has ______ parameter?

_______are used to represent data classified on qualitative?

A measure of dispersion is always ________________?

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

Geometric means of X1 and X2 is________________?

In natural Sciences, statistics____________.

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

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

The graphs of the symmetrical distribution is _____________?

Random numbers are also called__________________?

There are ________ important bases of classification?

Correlation is _____________ of regression coefficients?

A random variable may be _____________?

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

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

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

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

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?

If _________ then the distribution is positively skewed?

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 ?

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 ____________?

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

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

Non-random sampling is also called___________________?

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

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 ________________?

Variance is always calculated from___________?

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

Binomial distribution is symmetrical when P=___________________?

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

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

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

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

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

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

For a binomial distribution?

Correlation coefficient is ___________ with respect to x and y?

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