Question

can anyone help me with this
please ​

Answer 1

Answer:

Step-by-step explanation:

Answer:

The Mean

To find the mean, you

need to add up all the

data, and then divide

this total by the number

of values in the data.

Adding the numbers up gives:

2 + 2 + 3 + 5 + 5 + 7 + 8 = 32

There are 7 values, so you divide

the total by 7:    32 ÷ 7 = 4.57...

So the mean is 4.57 (2 d.p.)

Adding the numbers up gives:

2 + 3 + 3 + 4 + 6 + 7 = 25

There are 6 values, so you divide

the total by 6:    25 ÷ 6 = 4.166...

So the mean is 4.17 (2 d.p.)

Answer 2

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${\huge{\underline{\color{red}{\rm{Question}}}}}$

${\bf{Find\:mean\:of\:2,4,3,3,0,1,3,5,4}}$

$\begin{gathered} \\ {\underline{\rule{200pt}{3pt}}} \end{gathered}$

${\large{\underline{\color{green}{\rm{Answer}}}}}$

2.78

$\begin{gathered} \\ {\underline{\rule{200pt}{3pt}}} \end{gathered}$

${\large{\underline{\underline{\bf{To Find:}}}}}$

$\quad{\sf{Mean=?}}$

${\large{\underline{\underline{\sf{Given\:Numbers:}}}}}$

2,4,3,3,0,1,3,5,4

${\large{\underline{\underline{\sf{Ascending\:Order:}}}}}$

0,1,2,3,3,3,4,4,5

$\begin{gathered} \\ {\underline{\rule{200pt}{3pt}}} \end{gathered}$

${\large{\underline{\underline{\sf{Formula\:Using}}}}}$

${\large{\boxed{\color{red}{\sf{m=\frac{sum\:of\:all\:observations}{number\:of\:all\:observations}}}}}}$

• Here m=mean

${\large{\sf{Given\:terms(numbers)=9}}}$

${\large{\sf{Sum=0+1+2+3+3+3+4+4+5}}}$

${\large{\sf{=25}}}$

$\begin{gathered} \\ {\underline{\rule{200pt}{3pt}}} \end{gathered}$

$\begin{gathered} \\ \qquad{\rule{150pt}{1pt}} \end{gathered}$

${\qquad{\qquad{\qquad{\underline{\underline{\sf{Solution}}}}}}}$

${\qquad{\qquad{\large{\sf{\frac{sum\:of\:all\:observations}{number\:of\:all\:observations}}}}}}$

${\huge{\qquad{\qquad{\large{\sf{\frac{25}{9}}}}}}}$

${\qquad{\qquad{\qquad{\large{\sf{=2.78}}}}}}$

$\begin{gathered} \\ {\rule{200pt}{3pt}} \end{gathered}$

${\large{\color{green}{\bigstar{\sf{The\:mean\:of\:given\:observations\:is:\implies 2.78}}}}}$

$\begin{gathered} \\ {\underline{\rule{200pt}{3pt}}} \end{gathered}$

$\begin{gathered} \\ {\rule{200pt}{3pt}} \end{gathered}$

${\huge{\underline{\underline{\sf{More:}}}}}$

• Median

The term that is in the middle of all observations in Ascending Order.

${\large{\underline{\sf{Ascending\:Order:}}}}$

• 0,1,2,3,3,3,4,4,5

${\large{\underline{\underline{\rm{Formula\:Using}}}}}$

${\large{\boxed{\color{red}{\sf{median=\frac{n+1}{2}}}}}}$

Here n=number of observations

${\large{\sf{\frac{9+1}{2}}}}$

${\large{\sf{\frac{9+1}{2}=5}}}$

${\large{\sf{5th\:observation\:in\:ascending\:order}}}$

${\large{\sf{\longmapsto median=3}}}$

$\begin{gathered} \\ {\rule{200pt}{3pt}} \end{gathered}$

• Mode

${\large{\sf{Most\:Time\:ocurring\:Number}}}$

As "3"is coming most it is mode

$\begin{gathered} \\ {\underline{\rule{200pt}{3pt}}} \end{gathered}$