Question

Make a box-and-whisker plot for the data. What is the upper quartile value?
42 48 43 65 58 47 60 56 52 64 51 66 56 62

Answer 1

@Vocaloid

Answer 2

well first you would find the five number summary

start by ordering them least to greatest

Answer 3

42, 43, 47, 48, 51, 52, 56, 58, 60, 62, 64, 65, 66

Answer 4

what should I do next?

Answer 5

42,43,47,48,51,52,56,56,58,60,62,64,65,66

missed a 56 there

anyway you'd then find the middle value (median)

Answer 6

56?

Answer 7

@Vocaloid

Answer 8

good, then we'd divide the data set into two sets

set 1: 42,43,47,48,51,52,56 [everything below the median]
set 2: 56,58,60,62,64,65,66 [everything above the median]

and find the medians of these two sets

Answer 9

48 and 62?

Answer 10

good so your 5-number summary is:

min = 42
Q1 = 48
median = 56
Q3 = 62
max = 66

then you'd put these on your box plot like so:

Answer 11

[just make sure to use your values not these values]

Answer 12

anyway, it also asks for "upper quartile value" which is Q3 which we determined to be 62

Answer 13

so, the upper quartile is 66, or 62?

Answer 14

62 not 66

Answer 15

thankx

Answer 16

66 is the max