Answer:
Step-by-step explanation:
→It is given that the distribution is skewed left, and the range of the data is between 50 and 90. →When the distribution is skewed left Mean < Median < Mode →Since Mean and Median considers all the variate while calculating measure of center for a given set of Data set.When you calculate median you only count middle value among all the variate and when you calculate mean you use all the variate in the data set. →When you will plot the graph of Left Skewed distribution you will find that Median is at the center of the left skewed graph than mean.So, Median is probably a better representation of the data set.
Read more at Answer.Ya.Guru – https://answer-ya.com/questions/6179821-a-data-set-is-displayed-using-a-dot-plot-the-range-of-the-data.html
Answer:
<em>5</em><em> players participated in the tournament.</em>
Step-by-step explanation:
In a small chess tournament, 20 matches were played.
Let us assume that n number of players participated in the tournament
As in each game 2 players play, so the number of ways they can play is,
As they played 2 games with every other participant in the tournament.
So the total number of games is,
But it is given to be 20, so
As , so we get n=5.
Therefore, 5 players participated in the tournament.
Answer:
Therefore the value of 'y' is,
Step-by-step explanation:
Given:
To Find:
y= ?
Solution:
........Given
Step 1. Adding 50 to both the side we get
Step 2. Dividing by 10 on both the side we get
Therefore the value of 'y' is,