Answer:
a_ 203.3
b_ 210
Explanation:
The mean is the average of the data. It is found adding all the heights together and dividing by the number of heights. The frequency is the number of players who share the same height. So for example, 199 has a frequency of 3 so 3 players have this same height. When calculating the mean, you would calculate 3(199).
The mean is calculated by adding 198 + 3(199) + 2(200) + 5(201) + 2(202) = 2,604
Now divide by the number of heights - this is the frequency added together: 1 + 3 + 2 + 5 + 2 = 13
2,604/13 = 200.3
If the mean rises to 201 then some height x was added to the heights to raise the mean. You find it by solving for x.
