Can someone please help me I really need help please I don’t understand this
1 answer:
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Answer:
Step-by-step explanation:
We have been given a data set that represents the number of rings each person in a room is wearing as: 0, 2, 4, 0, 2, 3, 2, 8, 6. We are asked to find the interquartile range of the data.
Let us arrange our data points from least to greatest order.
0, 0, 2, 2, 2, 3, 4, 6, 8.
Let us find median of our data set. Since our data set has 9 data points, therefore, median of our given data set will be value of 5th term, that is 2.
Now let us find lower quartile, which is also known as the median of the data points to the left of median.
We have 4 data points to the left of our median, so our lower quartile will be average of 2nd and 3rd data point.
Now let us find upper quartile of our given data set, which is the median of the data points to the right of median.
We have 4 data points to the right of the median, so our upper quartile will be the average of 7th and 8th data point.
Since we know that interquartile range is the difference between upper and lower quartile.
Therefore, IQR of our given data set is 4.
Answer:
Perpendicular
Step-by-step explanation:
[1] We need to find the slopes of both lines! First, we will put them into standard form and then solve.
Standard form: y=mx+b
(1) 10x + 2y = 4
(subtract 10x from both sides)
2y = -10x + 4
(divide both sides by 2)
y = 5x+2
The slope is 5
(2) 5y - x = -5
(add x to both sides)
5y = x - 5
(divide both sides by 5)
y = x - 1
The slope is one-fifth
[2] Then, we need to determine if they are parallel, perpendicluar, or neither.
- If they are parallel they will have the same slope
- If they are perpendicular they will have exact opposite slopes
() Line 1 has a slope of 5 and line two has a slope of one-fifth. These are exact opposites so the lines are perpendicular.
(I hope this is correct and helped, have a nice day!)