Question

What is the first quartile (Q1) of the data set?

41, 33, 52, 67, 44, 38, 55, 62

Answer 1

1/4 of the data lies at ...

well, how many data points are there?

Answer 2

well first you would put the numbers in order

Answer 3

ordering is useful at times, but not quite necessary. just helps organize the data so its easier to see.

Answer 4

are u sure? i feel like u have to order it to find the first quartile

Answer 5

ordering is just for a personal preference.

if you can pick the nth highest number, than thats all you have to do.

take the set

5,1,3,7,2,

what is the 2nd highest number? do we have to order it to tell?

Answer 6

okay i guess not but that was how i was taught

Answer 7

organizing it is a good step, just saying its not required for the process. its a visual aspect that math really doesnt play into

Answer 8

im not trying to be mean but i need the answer quick

Answer 9

this isnt an answering site, its a study site. if you need quick answers then go someplace else ....

Answer 10

step 1, order the data if need be

step 2, determine how many data points there are

step 3, divide the number of data points by 4 to find a quartile; 1/4 of the data

step 4, rnd or average as needed

Answer 11

so, how many data points are there?

Answer 12

8

Answer 13

good, now 8/4 is 2 i assume you already know that

since this is an integer, we need to average the 2nd and 3rd smallest values to determine Q1

what are the 2nd and 32d smallest values?

Answer 14

** 2nd and 3rd smallest values ...

Answer 15

38 & 41

Answer 16

good, (38+41)/2 will be the first quartile

meaing that 1/4 of the data will fall below that value

Answer 17

so it would be 39.5

Answer 18

if we divided and got a decimal like:

2.46437 ... we could have just picked the 3rd smallest value;

Answer 19

39.5 is good to me

Answer 20

good luck :)

Answer 21

thank you!!