Question

Find the ratio of the volume of a cone and of a cylinder whose base diameter and height are equal?

Answer 1

Surely it may help you

Answer 2

Answer:

Central Tendency of Data - This generally refers to the measure of a certain pr given data in statistics. We, in combination often know it as Mean, Median and Mode as well.

So, the whole summary is given, with all the old versus new formulas.

So, Let's Begin!

Mean- First, when we come across this term, first thing in our mind is average. Now, we will compare average - ability with mean.

\sf{Average = \dfrac{Sum \ of \ Total \ Obs.}{No. \ of \ total \ Obs.}}Average=

No. of total Obs.

Sum of Total Obs.

Obs. means observation.

We can also calculate mean in few steps like Step Deviation method, Assumed mean method.

\sf{x = a + \bar{d}}x=a+

d

ˉ

Where a is assumed mean.

\sf{\bar{d} = \dfrac{ \Sigma \ f_i d_i}{ \Sigma \ f_i}}

d

ˉ

=

Σ f

i

Σ f

i

d

i

Now, coming to step deviation method:-

\sf{\bar{x} = \dfrac{ \Sigma \ f_i d_i \times c }{ \Sigma \ f_i}}

x

ˉ

=

Σ f

i

Σ f

i

d

i

×c

Where d is equal to \rm{\dfrac{x-a}{c}}

c

x−a

Median - Which is used to find the mid value of a given table.

Cumulative Frequency Comtinuous addition of values from upper to lower case or vice versa.

\rm{ Median = l + \dfrac{ \dfrac{n}{2} - c.f}{f} \times h}Median=l+

f

2

n

−c.f

×h .

And empirical formula

Mode = 3 Median - 2 mean.