Data Set : 25,8,10,35,5,45,40,30,20
what is the median of the given data set?
A.10
B.22.5
C.25
D.27.5
I think its C
what is the upper quartile of the given data set?
A.35
B.37.5
C.37
D.40
I think its B
what is the givin data of the lower quartile?
A.5
B.8
C.9
D.10
I think its C
Please help need go grades or go back to public school and thats scary! ;-;
ok thank you
actually, #1 is correct. 25 is the 5th value. 4 below, 4 above.
First, put the numbers in order from least to greatest.
For median:
https://www.mathsisfun.com/median.html
For quartiles:
https://study.com/academy/lesson/quartiles-the-interquartile-range-definition-formulate-examples.html
Once you redo each problem, post your answers again, and then wait for a math tutor to check your work.
I know your first answer is incorrect. Follow directions in that first link I gave you.
Follow the directions in the second link I gave you to double-check your second and third answers.
oobleck is right! I miscounted the number of values given. Duh!!
To find the median of a data set, you need to arrange the numbers in ascending order. In this case, the data set is: 5, 8, 10, 20, 25, 30, 35, 40, 45.
To determine the median, we need to find the middle value. Since the data set has an odd number of observations (9 in total), there is a single middle value. In this case, the middle value is 25. Therefore, the correct answer is C. 25.
To find the upper quartile, we need to divide the data into four quarters. Since we have a total of 9 observations, we take the middle value of the second half of the data set. In this case, the second half of the data set is: 30, 35, 40, 45. The middle value of this set is 37.5, so the correct answer is B. 37.5.
To find the lower quartile, we use the same process but take the middle value of the first half of the data set. In this case, the first half of the data set is: 5, 8, 10. The middle value of this set is 8, so the correct answer is B. 8.
Remember, finding the median, upper quartile, and lower quartile involves sorting the data set, so make sure to arrange the numbers in ascending order before performing the calculations.
Regarding your concerns about grades and public school, it's important to have a supportive learning environment. If you are struggling with certain subjects or need additional help, consider reaching out to your teachers, classmates, or online resources for assistance. Remember, asking for help is a sign of strength and determination to succeed.