i need answer for question no 19 plz i need it asap Q 19 The mean height of 50 - Economics - Measures of Central Tendency

Question

i need answer for question no 19 plz i need it asap
Q 19 The mean height of 50 students of a college is 68 inches The
height of 30 students below Find the mean height of the remaining
20 students

Height (in inches)
64
66
68
70
72

Frequency
4
12
4
8
2

Neha Chopra · Accepted Answer

Dear Student,

Given that mean height of 50 students is 68 inches and for 30
students respective average height is given in the question

Now mean height of remaining 20 students =
sum of height of 50 students - sum of height of 30 students20
=50×68-64×4+66×12+68×4+70×8+72×220=1,37620=68
80 inches

Regards,

i need answer for question no 19 plz i need it asap Q.19. The mean height of 50 students of a college is 68 inches. The height of 30 students below. Find the mean height of the remaining 20 students. Height (in inches) 64 66 68 70 72 Frequency 4 12 4 8 2

i need answer for question no 19 plz i need it asap
Q.19. The mean height of 50 students of a college is 68 inches. The height of 30 students below. Find the mean height of the remaining 20 students.

Height (in inches) 64 66 68 70 72

Frequency 4 12 4 8 2