Question

Number of the pages read in 5 days by Ninad is, 21, 32 ,33 ,25 and 29. Mean of number of pages read is​

Answer 1

Answer:

21+32+33+25+29

=150

she read 150 page in total

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Answer 2

✰ Given:

Number of pages read by Ninad in 5 days are given: 21, 32, 33, 25 and 29.

✰ To Find:

Mean of the number of pages read.

✰ Formula used:

To find the mean of a raw data, we wilp be using the following formula:

${\tt \leadsto \underline{\boxed{\tt Mean = \dfrac{Sum\:of\:observations}{Number\:of\:observations}}}}$

✰ Concept:

Here, we are given a raw data. We need to find the mean of the given data. From the given data, we are going to find number of observations and sum of observations (by adding the observations) and finally divide sum of observations by number of observations.

✰ Solution:

${\tt \leadsto 21, 32, 33, 25, 29}$

From the given data, we can clearly say that the number of observations is 5. This is because Ninad read number of pages in 5 days.

${\tt \leadsto Sum\:of\: observations = 21+32+33+25+29}$

By adding the data, we get:

${\tt \leadsto Sum\:of\: observations = 140}$

Now, we are directly going to apply the values in the Mean formula:

${\tt \leadsto {\tt Mean = \dfrac{Sum\:of\:observations}{Number\:of\:observations}}}$

We already know the values of Sum of observations and number of observations. Directly apply our values:

${\tt \leadsto {\tt Mean = \dfrac{140}{5}}}$

On dividing 140 by 5, we get 28 as the quotient and 0 as the remainder.

${\tt \leadsto \pink{\underline{\boxed{\tt Mean = 28}}}}$

Hence, the mean of the number of pages read is 28.