The **conventional deviation **is a meacertain of dispersion. It is the activity or procedure of distributing thing over a wide location.

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Dispersion:dispersion is the meacertain of the variation in between items.

Dispersion is the state of acquiring spread or spread. Statistical dispersion implies the extent to which a numerical data is likely to differ around an average worth.In various other words, dispersion helps to understand also the distribution of the information.**Central tendency:** A meacertain of central tendency is a typical value for a probcapability circulation.

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**Q2.**The intend weight of 9 items is 15 kg. If an additional item is added then the expect weight becomes 16 kg, then the weight of tenth item will be

**Q3.**The suppose and typical deviation of a variable x are 36 and also 4 respectively. Then the mean and also conventional deviation of <50 - (x / 4)>, respectively are:

**Q4.**For a frequency distribution of a discrete variable, the diagram of much less than form cumulative frequency is a

**Q5.**Initially tbelow are 9 employees, all being passist a unicreate wage. Later a 10th worker is included whose wage price is Rs. 20 less than for the others. The average wage gets:

**Q6.**The yearly vehicles production (in lacs) in india is given in the pie chart.If the yearly manufacturing of motor cycle is 1.80 lacs, the annual production

**Q8.**Following histogram mirrors particular frequency distribution versus course intervals.The approximated intend of this circulation is:

**Q9.**In a course, there are 25 students whose average age decreases by 3 months once one student aged 22 years is reinserted by a new student. The age ofthe brand-new student is:

**Q10.**If six hand-works were ranked by two judges in a competition and the rankings are as follows:Hand Writing123456Judge1654321Judge2123456Then the value of Spearman's rank correlation coreliable is

**Q1.**Two numbers are in the proportion of 2: 3. If their sum is 20, then what is the sum of the squares of the two number?