the hieght (in cm) of 8 girls are 140 142 135 133 137 150 148 and 138 respectively find the mean hoeght of these girl and there median hieght
Answers
Answered by
2
Step-by-step explanation:
Arranging in ascending order : 133, 135, 137, 138, 140, 142, 148, 150
Here, number of girls = 8 which is even
∴ Median = 1/2 {n/2 th term + (n/2 + 1) th term}
= 1/2 {8/2 th term + (8/2 + 1) th term}
= 1/2 {4th term + 5th term}
= 1/2 {138 + 140} cm = 1/2 × 278 = 139 cm
∴ Mean = (133 + 135 + 137 + 138 + 140 + 142 + 148 + 150)/8
= 1123/8 cm = 140.375 cm
Similar questions