6 An app on my new smartphone records the number of times in a day I use the phone. The data for each day since I bought the phone are shown in the stem and leaf diagram.
1
9
2
6
3
8
9
4
0
1
2
2
3
5
6
7
9
9
5
1
2
2
2
3
4
5
5
7
8
9
9
6
0
1
1
3
9
Key: 3|1 means 31
Explain whether these data are a sample or a population.
Describe the shape of the distribution.
Determine the interquartile range.
Use your answer to part (c) to determine whether there are any outliers in the lower tail.