reeseebaby89
26.06.2020 •
Mathematics
Jason wants to compare the mean height of the players on his favorite hockey and volleyball teams. He creates the dot plots shown below: First dot plot is labeled Height of Hockey Players and shows 1 cross on 67, 1 cross on 69, 2 crosses on 70, 2 crosses on 71, 4 crosses on 72, 5 crosses on 73, 3 crosses on 74, 2 crosses on 76, and 1 cross on 78. Second dot plot is labeled Height of Volleyball Players and shows 1 cross on 73, 1 cross on 75, 1 cross on 76, 2 crosses on 78, 2 crosses on 79, 2 crosses on 80, 2 crosses on 81, 2 crosses on 82, and 3 crosses on 84 The mean absolute deviation is 1.83 inches for the hockey team and 2.53 inches for the volleyball team. Which of the following conclusions can be drawn from the data? There is more variability in hockey team member heights. There is more variability in volleyball team member heights. The hockey players are all taller than the volleyball players. The volleyball players are all taller than the hockey players.
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Ответ:
Given that the MAD is 2.53 for the volleyball team, we can say there is more variability for volleyball team.
The mean absolute deviation is the average amount that a value is from the mean in a set of data. In this case, the volleyball team has a larger MAD, thus a larger variability.
Ответ:
12
Step-by-step explanation:
Pythogorean Theorem:
a squared + b squared = c squared
9 squared or 81 + ? squared = 15 squared or 225
Inverse Pythagorean Theorem:
c squared - a squared = b squared
225 - 81 = 144
sqrt (144) = 12
12 = b
Hope this helps! Good luck!