The marks in a subject for 12 students are as follows :

31, 37, 35, 38, 42, 23, 17, 18, 35, 25, 35, 29

F

2 thoughts on “The marks in a subject for 12 students are as follows : <br /><br /> 31, 37, 35, 38, 42, 23, 17, 18, 35, 25, 35, 29 <br /><br /> F”

1. Answer:

   30.4166667

   Step-by-step explanation:

   Mean =

   [tex] \frac{sum \: of \: the \: observations}{no \: of \: observations} [/tex]

   [tex] \frac{31, 37, 35, 38, 42, 23, 17, 18, 35, 25, 35, 29}{12} [/tex]

   = 30.4166667

   Thus the mean of this data is 30.4166667.

   Hope it helps!!

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2. Answer:

   • Mean of the given data is 30.4

   Step-by-step explanation:

   Given:

   • Data of Marks in a subject for 12 students.

   To Find:

   • Mean of the given data.

   Solution:

   First let’s note down the sum of observations.

   ⇒Sum of observations = 31+37+35+38+42+23+17+18+35+25+35+29

   ⇒Sum of observations = 365

   We already know that the number of observations is 12.

   Hence, to find the mean, we use the following formula:

   ⇒ Mean = Sum of observations/Number of observations

   Let’s apply the formula:

   ⇒ Mean = 365/12

   ⇒ Mean = 30.4

   Final Answer:

   → Mean of the given data is 30.4

   Reply