Question

LULU
A. mean
B. median
C. mode
D. None of these
The number of observation belonging to a some class is called...
A. Class frequency
B. Relative frequency
C. Class -width
D. None of these
If the variable X & Y changes in some direction the correlation is
A. Zero
B. Positive
C. Negative
D. None of these
IN
IM
The method of collecting data from entire population is called.
A. Census
B. Sampling
C. Both a & B
D. None of these​

Answer 1

Soory!!

For Which Class And From Which Book ??

Answer 2

Answer:

1.c

2.a

3.d

4.a

hopes it helps u