Question

The length of compass box measured by five students are 20.5cm, 20.6cm, 20.6cm,20.7cm , 20.5cm respectively then the average reading will be​

Answer 1

If the length of the compass box was measured as 20.5 cm, 20.6 cm, 20.6 cm, 20.7 cm, 20.5 cm respectively by 5 students then the average reading will be 20.58 cm

Step-by-step explanation:

The readings of the measurements of the length of the compass box are given as 20.5 cm, 20.6 cm, 20.6 cm, 20.7 cm and 20.5 cm

No. of readings of the length of the box measured by 5 students  = 5

The formula for finding the average is given by

Average = [Sum of terms] / [Number of terms]

Therefore, based on the above formula and the substituting the given values we get,

Average reading = [Sum of the readings of the length of box] / [No. of readings]

⇒ Average reading = $\frac{20.5 + 20.6 + 20.6 + 20.7 + 20.5}{5}$

⇒ Average reading = $\frac{102.9}{5}$

⇒ Average reading = 20.58 cm

Thus, the average reading of the length of the compass box will be 20.58 cm.

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