Answer:
![\% Below\ 50 = 88 \%](https://tex.z-dn.net/?f=%5C%25%20Below%5C%2050%20%3D%2088%20%5C%25)
![\% 43\ or\ more = 17 \%](https://tex.z-dn.net/?f=%5C%25%2043%5C%20or%5C%20more%20%3D%2017%20%5C%25)
Step-by-step explanation:
Given
![Total = 200](https://tex.z-dn.net/?f=Total%20%3D%20200)
<em>The attachment presents the table properly</em>
Solving (a): Percentage of those who play for less than 50 hours weekly
To do this, we simply consider the frequency of students that fall within:
1.0 - 7.9, 8.0 - 14.9,......,43.0 - 49.9
Their frequency is:
![Frequency = 21 + 37 + 40 + 27 + 23 + 18 + 10](https://tex.z-dn.net/?f=Frequency%20%3D%2021%20%2B%2037%20%2B%2040%20%2B%2027%20%2B%2023%20%2B%2018%20%2B%2010)
![Frequency = 176](https://tex.z-dn.net/?f=Frequency%20%3D%20176)
The percentage is then calculated as:
![\% Below\ 50 = \frac{Frequency}{Total} * 100\%](https://tex.z-dn.net/?f=%5C%25%20Below%5C%2050%20%3D%20%5Cfrac%7BFrequency%7D%7BTotal%7D%20%2A%20100%5C%25)
![\% Below\ 50 = \frac{176}{200} * 100\%](https://tex.z-dn.net/?f=%5C%25%20Below%5C%2050%20%3D%20%5Cfrac%7B176%7D%7B200%7D%20%2A%20100%5C%25)
![\% Below\ 50 = \frac{176* 100}{200} \%](https://tex.z-dn.net/?f=%5C%25%20Below%5C%2050%20%3D%20%5Cfrac%7B176%2A%20100%7D%7B200%7D%20%5C%25)
![\% Below\ 50 = \frac{176* 1}{2} \%](https://tex.z-dn.net/?f=%5C%25%20Below%5C%2050%20%3D%20%5Cfrac%7B176%2A%201%7D%7B2%7D%20%5C%25)
![\% Below\ 50 = \frac{176}{2} \%](https://tex.z-dn.net/?f=%5C%25%20Below%5C%2050%20%3D%20%5Cfrac%7B176%7D%7B2%7D%20%5C%25)
![\% Below\ 50 = 88 \%](https://tex.z-dn.net/?f=%5C%25%20Below%5C%2050%20%3D%2088%20%5C%25)
Solving (b): Percentage of those who play for 43 or more hours weekly
To do this, we simply consider the frequency of students that fall within:
43.0 - 49.9,......,64.0 - 70.9
Their frequency is:
![Frequency = 10 + 7 + 5+12](https://tex.z-dn.net/?f=Frequency%20%3D%2010%20%2B%207%20%2B%205%2B12)
![Frequency = 34](https://tex.z-dn.net/?f=Frequency%20%3D%2034)
The percentage is then calculated as:
![\% 43\ or\ more = \frac{Frequency}{Total} * 100\%](https://tex.z-dn.net/?f=%5C%25%2043%5C%20or%5C%20more%20%3D%20%5Cfrac%7BFrequency%7D%7BTotal%7D%20%2A%20100%5C%25)
![\% 43\ or\ more = \frac{34}{200} * 100\%](https://tex.z-dn.net/?f=%5C%25%2043%5C%20or%5C%20more%20%3D%20%5Cfrac%7B34%7D%7B200%7D%20%2A%20100%5C%25)
![\% 43\ or\ more = \frac{34* 100}{200} \%](https://tex.z-dn.net/?f=%5C%25%2043%5C%20or%5C%20more%20%3D%20%5Cfrac%7B34%2A%20100%7D%7B200%7D%20%5C%25)
![\% 43\ or\ more = \frac{34* 1}{2} \%](https://tex.z-dn.net/?f=%5C%25%2043%5C%20or%5C%20more%20%3D%20%5Cfrac%7B34%2A%201%7D%7B2%7D%20%5C%25)
![\% 43\ or\ more = \frac{34}{2} \%](https://tex.z-dn.net/?f=%5C%25%2043%5C%20or%5C%20more%20%3D%20%5Cfrac%7B34%7D%7B2%7D%20%5C%25)
![\% 43\ or\ more = 17 \%](https://tex.z-dn.net/?f=%5C%25%2043%5C%20or%5C%20more%20%3D%2017%20%5C%25)