Need help with algebra, algebra homework help

Need help with algebra please write your work and answers on paper.

1. Ling wants to determine the average distance she travels each day in her car. She records the odometer
reading each morning for a week.
1
3
4
5
6
7
Day
2
Odometer (mi) 10,150 10,211
10,424 10,769
10,884 11,155 11,477
What is the mean distance Ling travels each day? Show your work.
Answer:
2. The data in the table represent the training times in seconds) for Adam and Miguel.
Adam
103
105
104
106
100
98
92
91
97
101
Miguel
88
86
89
93
105
85
92
96
97
94
(a) All of the training times of which person had the greatest spread? Explain how you know.
(b) The middle 50% of the training times of which person had the least spread? Explain how you know.
(c) What do the answers to Parts 2(a) and 2(b) tell you about Adam’s and Miguel’s training times?
Answer:
3. The data modeled by the box plots represent the battery life of two different brands of batteries that Mary
tested.
Battery Life
Brand X
Brand Y
+
11
10
12
16 17 18
13 14 15
Time (h)
(a) What is the median value of each data set?
(b) Compare the median values of the data sets. What does this comparison tell you in terms of the
situation the data represent?
Answer: