Question

An executive’s telephone log showed the lengths of 60 calls initiated during the last week of July.

1	2	10	5	3	3	2	20	1	1
6	3	13	2	2	1	26	3	1	3
1	2	1	7	1	2	3	1	2	12
1	4	2	2	29	1	1	1	8	5
1	4	2	1	1	1	1	6	1	2
3	3	6	1	3	1	1	5	1	18

(b) Find the mean, median, and mode. (Round your answers to 2 decimal places.)

Descriptive Statistics	Data
count
Mean
Median
Mode

(c) Do the measures of center agree?

• Yes

• No

(d) Are the data symmetric or skewed? If skewed, which direction?

• Yes, the data are skewed to the right.

• No, the distribution is symmetric.

• Yes, the data are skewed to the left

Answer 1

(b) Find the mean, median, and mode.

The mean is the sum of the given observations divided by the number of observations

The median is the middle value, which divides the data into two equal halves.

The mode is the most frequently occurring observation in the data.

Descriptive Statistics	Data
Count	256
Mean	4.27
Median	2
Mode	1

(c) Do the measures of center agree?

Answer: No, because the Mean, Median and Mode are not equal.

(d) Are the data symmetric or skewed? If skewed, which direction?

Answer: Yes, the data are skewed to the right.