Question

$\dag\;\sf \red{Hi\;there!\;:D}$
▬▬▬▬▬▬▬▬▬▬
Mass of metal piece is measured. The successive reading are 2.63g, 2.56g, 2.42 g, 2.80g. The mean value is

A) 2.31 g

B) 2.62 g

C) 2.14 g

D) 2.21 g
▬▬▬▬▬▬▬▬▬▬
$<marquee> Thanks!☃️ :D <\marquee>$
​

Answer 1

QUESTION :-

Mass of metal piece is measured. The successive reading are 2.63g, 2.56g, 2.42 g, 2.80g. The mean value is

A) 2.31 g

B) 2.62 g

C) 2.14 g

D) 2.21 g

ANSWER :-

We have to find the mean value of the mass of the metal piece according to the given data ( reading ).

We know the formula :-

$mean \: value \: = \frac{sum \: of \: no.of \: observation}{total \: \: no.of \: observation}$

Now,

Using formula - -

$Mean \: value = \frac{2.63g + 2.56g + 2.42 g + 2.80g}{4}$

$mean \: value \: = \frac{10.41}{4} \\ mean \: value \: \: = 2.602$

Hence,

After rounding off of 2.602 g we get,

Mean value = 2.6

So, Option (B) 2.62 g is correct one.

____________________

____________________Thank you for the question !

Answer 2

Answer:

option (B)

Explanation:

Above picture contains explanation .

Hope Helpful