Question

calculate the mean from the following ungrouped scores:
5, 10, 15, 20, 25​

Answer 1

Answer:

HII

Step-by-step explanation:

given observations are 5,10,15,20,25

sum of observations

mean=number of observations

= 5+10+15+20+25 by 5

75 by 5

=mean=15

Answer 2

$\huge{\mathfrak{\green{Ans}}} {\mathfrak{wer \: :}}$

★ $\Large{\underline{\sf{Given \: }}} \sf{:}$

We are given the ungrouped scores which are : 5, 10, 15, 20 and 25 respectively.

$\rule{200}{2}$

★ $\Large{\underline{\sf{To \: Find}}} {\sf{:}}$

We have to find the mean of the ungrouped scores.

$\rule{200}{2}$

★ $\Large{\underline{\sf{Solution}}}\sf{:}$

We know the formula to find the mean.

$\Large{\star{\boxed{\sf{Mean = \frac{Sum \: of \: observation}{Number \: of \: observations}}}}}$

_____________[Put Values]

$\sf{→ Mean = \frac{5 + 10 + 15 + 20 + 25}{5}} \\ \\ \sf{→ Mean = \frac{\cancel{75}}{\cancel{5}}} \\ \\ \sf{Mean = 15}$

∴ Mean of the ungrounded scores is 15.