Home Sales Prices

(hundred thousands) (ten thousands)

0 667778999

1 02447778889999

2 0011234445667889

3 00011224

The stem-and-leaf plot above shows house sale prices over the last week in Tacoma. What was the most expensive house sold? Give your answer in dollars?

The IQ scores of 50 students are given below.

97 85 106 85 118 109 87 111 94 95 116 89 109 116 92 91 119 101 102 100 85 98 95 103 115 101 89 103 118 88 97 112 118 96 92 98 116 107 118 98 86 116 102 98 89 108 114 110 103 91

(a) Construct a grouped frequency distribution for the data. Use 85-89 for the first class and use the same width for each subsequent class.

Class Frequency

85-89 ( )

( - ) ( )

( - ) ( )

( - ) ( )

( - ) ( )

( - ) ( )

( - ) ( )

( - ) ( )

Find the 25th, 50th, and 75th percentile from the following list of 24 data.

2 14 22 28 31 35 37 47 48 51 56 59 62 63 66 71 75 76 79 83 91 92 97 99

25th percentile =

50th percentile =

75th percentile =