ANSWER:
Consider the class interval be 0.09
a)
Class interval | Frequency | Cumulative frequency | Relative | Cumulative relative |
0-0.0899 | 13 | 13 | 0.068 | 0.068 |
0.09-0.1799 | 75 | 88 | 0.391 | 0.458 |
0.18-0.2699 | 32 | 120 | 0.167 | 0.625 |
0.27-0.3599 | 23 | 143 | 0.120 | 0.745 |
0.36-0.4499 | 24 | 167 | 0.125 | 0.870 |
0.45-0.5399 | 11 | 178 | 0.057 | 0.927 |
0.54-0.6299 | 10 | 188 | 0.052 | 0.979 |
0.63-0.7199 | 4 | 192 | 0.021 | 1.000 |
Midpoint | Frequency |
0.04495 | 13 |
0.13495 | 75 |
0.22495 | 32 |
0.31495 | 23 |
0.40495 | 24 |
0.49495 | 11 |
0.58495 | 10 |
0.67495 | 4 |
b)
No values are greater than 0.9. Hence, zero percent
c)
63 subjects had S/R values less than 0.70. i.e (63/192)= 0.3281
Therefore, 32.8125 percent had S/R in the range 0.3 - 0.699
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