1 8. The heights of 10 students were measured (in cm) and the results are as follows: 147, 139, 135, 136, 149, 166, 152, 163, 155, 144 (0) What is the range (in cm) of the data? (ii) What is the mean height (in cm) of the students? (iii) How many students are there whose height is more than the mean height (in cm)
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Step-by-step explanation:
(i) Range = Maximum value − Minimum value
=166−135=31
(ii) Mean height of students
= Total height of students
Number of students
= 147+139+135+136+149+166+152+163+155+144/10
=1486/10
=148.6
(iii) Height of students more than the mean height are 149,166,152,163,155.
i.e., 5 student's height is more than mean height.
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