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Find Mean, Median, Mode, Quartiles, Delices, Percentiles, Variance, Standard deviation for grouped data 






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Find Mean, Median, Mode, Quartiles, Delices, Percentiles, Variance, Standard deviation for grouped data

1. Calculate the mean and standard deviation for the following distribution
X 
6 
7 
8 
9 
10 
11 
12 
f 
3 
6 
9 
13 
8 
5 
4 
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2. Calculate the mean,.and standard deviation for the following distribution
Class 
4.512.5 
12.520.5 
20.528.5 
28.536.5 
36.544.5 
44.552.5 
52.560.5 
60.568.5 
68.576.5 
f 
4 
24 
21 
18 
5 
3 
5 
8 
2 
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3. Calculate the mean and standard deviation for the following distribution
x 
18 
19 
20 
21 
22 
23 
24 
25 
26 
27 
f 
3 
7 
11 
14 
18 
17 
13 
8 
5 
4 
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4. Calculate the mean and standard deviation for the following distribution
Class 
5055 
4550 
4045 
3540 
3035 
3530 
2025 
f 
25 
30 
40 
45 
80 
110 
170 
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