Calculate of arithmetic mean of the following frequency distribution.
Class Interval |
Frequency |
0-20 |
12 |
20-40 |
18 |
40-60 |
15 |
60-80 |
25 |
80-100 |
26 |
100-120 |
15 |
120-140 |
9 |
Find the mean of the following data :
Classes |
Frequency |
0-100 |
12 |
100-200 |
18 |
200-300 |
40 |
300-400 |
17 |
400-500 |
13 |
Solution not provided.
Ans. 251
Find the mean of the following data :
Classes |
Frequency |
0-50 |
5 |
50-100 |
10 |
100-150 |
15 |
150-200 |
12 |
200-250 |
8 |
The arithmetic mean of the following frequency distribution is 50. Find the value of P.
Classes |
Frequency |
0-20 |
17 |
20-40 |
P |
40-60 |
32 |
60-80 |
24 |
80-100 |
19 |
The arithmetic mean of the following frequency distribution is 53. Find the value of P.
Classes |
Frequency |
0-20 |
12 |
20-40 |
15 |
40-60 |
32 |
60-80 |
P |
80-100 |
13 |
The arithmetic mean of the following frequency distribution is 52.5. Find the value of P.
Classes |
Frequency |
0-20 |
15 |
20-40 |
22 |
40-60 |
37 |
60-80 |
P |
80-100 |
21 |
The arithmetic mean of the following frequency distribution is 47. Determine the value of P.
Classes |
Frequency |
0-20 |
8 |
20-40 |
15 |
40-60 |
20 |
60-80 |
P |
80-100 |
5 |
The arithmetic mean of the following frequency distribution is 50. Determine the value of P.
Classes |
Frequency |
0-20 |
16 |
20-40 |
P |
40-60 |
30 |
60-80 |
32 |
80-100 |
14 |