Question

what is the median score achieved by a student who recorded the following scores on 10t math quizzes
68 55 70 62 71 58 81 82 63 79​

Answer 1

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Required answer-:

68,55,70,62,71,58,81,82,63,79(the no. of observations is even so find the middle value)

$\rightarrow$71 + 58

$\rightarrow$129 ÷ 2

$\rightarrow$64.5

So,the mean is 64.5

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Answer 2

Answer:

Median score is 69.

Step-by-step explanation:

Given: Math scores 68, 55, 70, 62, 71, 58, 81, 82, 63, 79​.

To find median score.

For median of score first arrange data in ascending order.

$55,58,62,63,68,70,71,79,81,82$

Here the number of terms are even so the median is average of (n/2)th and (n/2)+1 the term.

Here, n=10

So, (n/2)=5th term and (n/2)th +1 = 6th term.

5th term is 68 & 6th term is 70.

Hence median =(68+70)/2

                         =138/2

                         =69

Therefore the median score achieved by a student is 69.

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