Question

chapter quiz
find the mean, mode, and median.

1. 6, 5, 5, 3, 6, 5, 12 2. 15, 8, 20, 10, 10, 10, 14, 12, 18

find the minimum, maximum, and range.

1. 4, 64, 2, 32, 5, 14, 6, 7, 3, 22 4. 100, 88, 22, 43, 10, 75, 54, 23, 18
2. make a frequency table for the set of data of shirt sizes: s, l, m, m, s, m, s, s, l, m, l, m, m, l, s. describe the results.
3. use the frequency table from number 5 to tell how many more medium shirts were ordered than large.

make a stem - and - leaf plot for each set of data.

1. 10, 12, 15, 21, 24, 31, 32, 33 8. 72, 92, 74, 83, 73, 87, 95, 74, 99

for each scatter plot, tell whether the correlation is positive or negative.

1. image of a scatter plot 10. image of a scatter plot

find the mean, mode, and median of each set of data. then, tell which of the mean, mode, and median best describes the data.

1. 2, 2, 2, 32, 37, 39 12. 94, 97, 1, 97, 99, 5, 97

find the quartiles in each set of data.

1. 12, 14, 16, 19, 32, 35, 37 14. 58, 49, 43, 47, 43, 53, 55

Explanation:

Step1: Find Mean

Sum the data: \(6 + 5 + 5 + 3 + 6 + 5 + 12 = 42\). Divide by number of values (\(n = 7\)): \(\frac{42}{7}=6\).

Step2: Find Mode

Identify the most frequent value. \(5\) appears 3 times, \(6\) appears 2 times, others less. Mode is \(5\).

Step3: Find Median

Sort data: \(3, 5, 5, 5, 6, 6, 12\). Middle term (4th) is \(5\).

Answer:

Mean = 6, Mode = 5, Median = 5