Question

here are the high temperature readings in degrees fahrenheit for phoenix, arizona, for each day in july of a recent year.
111 107 115 108 106 109 111 113 104 103 97 99 104 110 109 100 105 107 102 101 84 93 101 105 99
102 104 108 106 106 109
make a stemplot of these data. do not split stems.

Explanation:

Step1: Identify stem values

Stems are tens digits: 8,9,10,11

Step2: List leaves for each stem

• Stem 8: Leaves are units digits of 84,83 → 4,3
• Stem 9: Leaves are units digits of 97,99,93,99 → 7,9,3,9
• Stem 10: Leaves are units digits of 107,108,106,109,104,103,104,110→wait, no: extract all 10X values: 107,108,106,109,104,103,104,100,105,107,102,101,101,105,102,104,108,106,106 → leaves: 7,8,6,9,4,3,4,0,5,7,2,1,1,5,2,4,8,6,6
• Stem 11: Leaves are units digits of 111,115,111,113,110,109→wait, 11X values:111,115,111,113,110,109 no: 111,115,111,113,110,109 is 109 no, correct 11X:111,115,111,113,110,109 no, original data 111,107,115,108,106,109,111,113,104,103,97,99,104,110,109,100,105,107,102,101,84,93,101,105,99,102,104,108,106,106,109. So 11X:111,115,111,113,110 → leaves:1,5,1,3,0

Step3: Sort leaves for each stem

• Stem 8: 3,4
• Stem 9: 3,7,9,9
• Stem 10: 0,1,1,2,2,3,4,4,4,5,5,6,6,6,7,7,8,8,9,9
• Stem 11: 0,1,1,3,5

Step4: Format the stemplot

Align stems and sorted leaves.

Answer:

Stem | Leaves
  8  | 3 4
  9  | 3 7 9 9
 10  | 0 1 1 2 2 3 4 4 4 5 5 6 6 6 7 7 8 8 9 9
 11  | 0 1 1 3 5

Key: 10 | 5 represents 105 degrees Fahrenheit