Question

Which data set has the greatest spread for the middle 50% of its data?

{18, 13, 22, 17, 21, 24}

{17, 19, 22, 26, 17, 14}

{13, 17, 12, 21, 18, 20}

{18, 21, 16, 22, 24, 15}

Answer 1

you're just looking for the IQR (inter quartile range) for your data.

sort your data from smallest to largest. from there it should be fairly obvious, if not i can help

Answer 2

i think its c but im not sure of it

Answer 3

did you sort your data (from smallest to largest)?

Answer 4

i did but now i thinks its A

Answer 5

13 17 18 21 22 24
14 17 17 19 22 26
12 13 17 18 20 21
15 16 18 21 22 24

so what's the first quartile for each data set?

Answer 6

13 17 and down

Answer 7

?

Answer 8

i figured it out

Answer 9

q1 = 15, q3 = 23 => IQR = 8
q1 = 15.5, q3 = 24 => IQR = 8.5
q1 = 11.5, q3 = 20.5 => IQR = 9
q1 = 15.5, q3 = 23 => IQR = 7.5

Answer 10

Which data set has a greater spread? Why?

A: {38, 12, 23, 48, 55, 16, 18}

B: {44, 13, 24, 12, 56}

Answer 11

what's the range of each data set? that's one way of looking at spread.

Answer 12

i put them in order then i got 56 and 12