railway RRB Technician Grade 1 Mock Test 2024 Quantitative Aptitude Elementary Statistics

Consider the following grouped frequency distribution:

X

F

0-10

8

10-20

12

20-30

10

30-40

P

40-50

9
If the mean of the above data is 25.2, then what is the value of p?

1
9
2
10
3
11
4
12
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