Statistics And Probability Question 50
Question: The mean weight per student in a group of seven students is 55 kg If the individual weights of 6 students are 52, 58, 55, 53, 56 and 54; then weights of the seventh student is
[Pb. CET 2002]
Options:
A) 55kg
B) 60kg
C) 57kg
D) 50kg
Show Answer
Answer:
Correct Answer: C
Solution:
Total weight of 7 students is =55× 7 = 385 kg Sum of weight of 6 students = 52 + 58 + 55 + 53 + 56 + 54 = 328 kg
$ \therefore $ Weight of seventh student = 385 ? 328 = 57kg.
BETA
