6. The marks (out of 100) obtained by a group of students in a science

1.	6. The marks (out of 100) obtained by a group of students in a science test are 85.7690.85, 39, 48, 56, 95, 81 and 75. Find the:(1) Highest and the lowest marks obtained by the students.(ii) Range of the marks obtained.(m) Mean marks obtained by the group.
Answer» Answer: (i) highest marks OBTAINED by students = 95 lowest marks obtained by students = 39 (II) range = highest value - lowest value =95-39=56 (III) mean = SUM of all observation / TOTAL no. of observation = 85.76+90.85+39+48+56+95+81+75/8 =570.61/8=71.326

6. The marks (out of 100) obtained by a group of students in a science test are 85.7690.85, 39, 48, 56, 95, 81 and 75. Find the:(1) Highest and the lowest marks obtained by the students.(ii) Range of the marks obtained.(m) Mean marks obtained by the group.

Answer»

Answer:

(i) highest marks OBTAINED by students = 95

lowest marks obtained by students = 39

(II) range = highest value - lowest value =95-39=56

(III) mean = SUM of all observation / TOTAL no. of observation = 85.76+90.85+39+48+56+95+81+75/8 =570.61/8=71.326