Question

Out of 50 students, the student with first rank was given 80
marks instead of 79 and the student with second rank was
given 79 instead of 95.
Which of the following statements are true after corrections
done ?
a) Mean, median, mode is unaffected
b) Mean is changed but median, mode is unaffected
c) Median is changed but mode, mean is unaffected
d) Mean, median, mode has changed
option (a) is correct
option (b) is correct
option (c) is correct
option (d) is correct​

Answer 1

Answer:

Here is your answer...

option (a) is correct.

Answer 2

Step-by-step explanation:

option (a) is correct answer is mean,median, mode is unaffected