Q1) MEAN
This is grouped frequency. To calculate the mean we need the 'x' : classmark
x = (upper l + lower L )/ 2
Workouts | ||||
lower L | Upper L | x | F | xf |
1 | 3 | 2 | 64 | 128 |
4 | 6 | 5 | 43 | 215 |
7 | 9 | 8 | 24 | 192 |
10 | 12 | 11 | 18 | 198 |
13 | 17 | 15 | 16 | 240 |
18 | 22 | 20 | 13 | 260 |
23 | 28 | 25.5 | 7 | 178.5 |
Total | 185 | 1411.5 |
Mean =
Mean = 7.62
But here there has been an error since mean is shown as 3.8
ans: 3.8
Q2)
To know the number of particpants we simply look at the frequenc y 'F" column of the required class.
18 - 22: F = 13
Ans: 13
Canvas → X COD Using the table, what was the mean number of workout sessions completed?...
Canvas → X CIO Using the table, what percentage of participants completed 10-12 workouts? No. of workout sessions per month F 64 13 34.6 346 4-6 43 23.2 57.8 7-9 24 13.0 70.8 10-12 18 9.7 305 13-17 8.6 89.1 13 7.1 962 23-20 7 100.00 Note Medions Morten 2M-28 19 10 6 8 9 Q E R P
Canvas → X CIO Using the table, what percentage of participants completed 10-12 workouts? No. of workout sessions per month F 64 13 34.6 346 4-6 43 23.2 57.8 7-9 24 13.0 70.8 10-12 18 9.7 305 13-17 8.6 89.1 13 7.1 962 23-20 7 100.00 Note Medions Morten 2M-28 19 10 6 8 9 Q E R P
Question 34 Using the table, what percentage of the participated marijuana as their greatest drug problem? Greatest Problem Drug % Lifetime use % Substance Marijuana 71.7 92.8 Nicotine 16.4 76.4 Alcohol 5.6 89.2 Cocaine/crack 2.5 32.1 Club Drugs 2.1 25.1 Inhalants 1.8 18.4 18.4% 71.7% 2.5% 92.8% Question 37 Using the table, what is the median number of workout sessions completed by the participants? % % No. of workout sessions per month 1-3 64 34.6 34.6 43 4-6 23.2 57.8...
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