Math, asked by jprakashpaul, 9 months ago

The marks obtained by 30 students of Class X of a certain school in a Mathematics paper
consisting of 100 marks are presented in table below. Find the mean of the marks obtained by the students

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Answers

Answered by abhijeet4467
10

Step-by-step explanation:

the answer of these question is 59.3

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Answered by annasl
2

Answer:

(i) The mean marks obtained by students is 59.3

Step-by-step explanation:

marks obtained(x)      f         fx

10                                  1        10

20                                 1        20

36                                 3       108

40                                 4       160

50                                 3       150

56                                 2       112

60                                 4       240

70                                 4        280

72                                 1          72

80                                 1          80

88                                 2         176

92                                 3         276

95                                1          95

                                   30        1779

mean = \frac{ \sigma\ fixi}{ \sigma\ fi}

mean = \frac{1779}{30}

mean = 59.3

The mean marks obtained by students is 59.3

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