Inter School Quiz (English Medium) Paper 02

Which of the following statements is true?

• A “less than” ogive falls downwards from left to the right.

• Sampling errors can be reduced by increasing the sample size.

• Descriptive statistics try to make conclusions about the population based on the data available.

• Once a particular data point can be put into a category such an observation is known as a rank data.

Which of the following statements is false?

• A complex table is a table which shows more than one characteristics of the data.

• Pictogram couldn’t represent the minor variations of a specific variable.

• Collar size of a t-shirt is an example of discrete data.

• Incurring higher cost is one of the demerits of secondary data.

…………………… are considered as bi-dimensional charts.

• Line charts

• Pictograms

• Pie charts

• Simple bar charts

The value Gine coefficient is ………. represent the totally unequal distribution while the value of Gine coefficient is ……….. represent the totally equal distribution of the specific variable.

• 0 , 1

• -1 , 1

• 1 , 0

• 1 , -1

The median value of the series 2, 2, 8, 4, 7, 9, 5, 6, 6 is equals to ……………

• 7

• 6

• 5

• 8

In the case of skewed distribution, the most appropriate measures of central tendency is …………………

• Median

• Mode

• Mean deviation

• Quartile deviation

What is the most suitable measure to compute the mean of data available in reciprocal?

• Arithmetic mean

• Harmonic mean

• Weighted mean

• Geometric mean

Summation of the mean deviations is always ………………. the summation of the deviation of other specific value.

• equals to

• less than

• more than

• more than or equals to

If the Economics marks increases by 10 when the study hours per week increases by 4 according to the fitted regression line, what is the regression co-efficient?

• 0.4

• 40

• 14

• 2.5

Square root of the multiplication of regression coefficient of Y on X regression line and X on Y regression line of same data set is equals to ……………….. of the regression equation.

• coefficient of determination

• product movement correlative coefficient

• rank correlative coefficient

• coefficient of covariance