Question

The Sum of 15 numbers is 435 .the mean of those numbers

Answer 1

$Given \:sum \:of \: 15 \: numbers \: is \:435$

$Here , Number \: of \: observations = 15$

$Sum \:of \: observations = 435$

/* We know that */

$\boxed { \pink { Mean = \frac{Sum \:of \: observations }{ Number \: of \: observations} }}$

$\blue { Mean } = \frac{435}{15}$

$= \frac{ \cancel {15} \times 29}{\cancel {15}}$

$= 29$

Therefore.,

$\red{ Required \:mean } \green { = 29}$

•••♪

Answer 2

$\bf{\underline{\underline{\bigstar\bigstar\: Given : }}}$

$\:$

• $\footnotesize{ Sum \: of \: observation = 435}$

• $\footnotesize{ No. \: of \: observation = 15}$

$\:$

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

$\:$

• $\footnotesize{ Mean \: of \: no.}$

$\:$

$\bf{\underline{\underline{\bigstar\bigstar\: Solution :}}}$

$\:$

$\footnotesize{ Mean = \dfrac{Sum \: of \: observation}{No. \: of \: observation}}$

$\footnotesize{\implies Mean = \dfrac{435}{15}}$

$\footnotesize{\implies Mean = 29}$

$\:$

$\bold{ Mean \: of \: no. \: is \: 29}$