Find the:
The marks (out of 100) obtained by a group of students in a science test are 85,76,
(1) Highest and the lowest marks obtained by the students.
(i) Range of the marks obtained.
(ii) Mean marks obtained by the group.
Imant in a school during six consecutive years was as follows:
Ok This is a question of Ch 3 Data Halding Class 7 for you
Answers
Answered by
2
Answer:
Hola user!!!
a). Highest marks is 95 and
lowest marks is 39.
b).
mean = \frac{sum \: of \: observations}{total \: observations}mean=
totalobservations
sumofobservations
= \frac{85 + 76 + 90 + 85 + 39 + 48 + 56 + 95 + 81 + 75}{10}=
10
85+76+90+85+39+48+56+95+81+75
= \frac{730}{10}=
10
730
= 73
c). No. of students securing more than the mean marks is 7 that are :-
85, 76, 90, 85, 95, 81, 75
Hope it helps u!!
Answered by
1
Answer:
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highest marks 95 and lowest marks 39.
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