## MATH 533 Week 1 Quiz (Summer 2019)

**1. Question: 1.1.13: **Suppose you’re given a data set that classifies each of simple unit into one of four categories. A, B, C or D. you plan to create a computer database consisting of these data and you decide to code the data as A = 1, B = 2, C = 3, and D = 4. Are the data consisting of the classifications A, B, C, and D qualitative or quantitative? After the data are input 1, 2, 3, and 4 are they qualitative or quantitative?

**2. Question: 1.1.21: **A company tracked all credit card purchases during the year 2005 and measures two variables (1) the type of credit card used (VISA, Master Card or American Express and (2) te amount (in dollars) of each purchase.

**3. Question: 2.1.1: **Complete the table to the right

**4. Question: 2.1.6: **In one university, language professors incorporated a 10-week extensive reading program to improve students’ Japanese reading comprehension. The professors collected 267 books originally written for Japanese children and required their students to read at least 40 of them as part of the grade in the course. The books were categorized into reading levels (color-coded for easy selection) according to length and complexity. Complete parts a through c.

**5. Question: 2.2.20: **Consider the stem-and-leaf display to the right

1. How many observations were in the original data set?

2. In the bottom row of the stem-and-leaf display, identify the stem, the leaves, and the numbers in the original data set represented by this stem and its leaves.

3. Re-create all the numbers in the data set and construct a dot plot.

## STATUS

**6. Question: 2.2.21: **MINITAB was used to generate the histogram to the right.

1. Is this a frequency histogram or a relative frequency histogram.

2. How many measurement classes were … in the construction of this histogram?

3. How many measurements are in the … by this histogram?

**7. Question: 2.3.39: **Calculate the mean, median, and mode of the following data

16 13 14 16 20 20 20 12 11 17 15

**8. Question: 2.4.57: **Calculate the range, variance, and standard deviation for the following sample.

2, -3, 3, 5, 6, 4, 4, 3, 5, 5

**9. Question: 2.4.63: **Consider the following sample of five measurements.

5, 3, 3, 0, 7

**10. Question: 2.8.121: **Construct a scattergram for the data in the following table.

**11. Question: 1.1.18: **Identifyy each of the following variables as qualitative or quantitative.

1. Number of sick days taken in year

3. Gender

4. College major

**12. Question: 2.1.1: **Complete the table to the right

**13. Question: 2.2.19: **Use the relative frequency table shown to the right Complete the table to the right to calculate the number of the 600 measurement classes. Then graph a frequency histogram for these data.

**14. Question: 2.2.21: **MINITAB was used to generate the histogram to the right.

1. Is this a frequency histogram or a relative frequency histogram.

2. How many measurement classes were … in the construction of this histogram?

3. How many measurements are in the data set described by this histogram?

**15. Question: 2.3.35: **Calculate the mean, median, and mode of the following data

3.2 3.7 3.8 3.7 2.3 3.6

**16. Question: 2.4.57: **Calculate the range, variance, and standard deviation for the following sample.

0.6, 0, 0, – 3, 3, – 2, 3, 0, – 3, 3, – 3, 0, -1, -2, -3, 0, 3

**17. Question: 2.4.63: **Consider the following sample of five measurements.

6, 1, 2, 0, 7

**18. Question: 2.8.121: **Construct a scattergram for the data in the following table.

**19. Question: 1.1.21: **A company tracked all credit card purchases during the year 2005 and measures two variables (1) the type of credit card used (VISA, Master Card or American Express and (2) te amount (in dollars) of each purchase.

**20. Question: 2.1.1: **Complete the table to the right

**21. Question: 2.2.19: **Graph the relative frequency histogram for the 600 measurements summarized in the relative frequency table below.

**22. Question: 2.2.21: **MINITAB was used to generate the histogram to the right.

1. Is this a frequency histogram or a relative frequency histogram.

2. How many measurement classes were … in the construction of this histogram?

3. How many measurements are in the … by this histogram?

**23. Question: 2.3.35: **Calculate the mean and median of the following grade point averages.

3.5 3.3 3.7 2.6 2.5 2.4

**24. Question: 2.4.57: **Calculate the range, variance, and standard deviation for the following sample.

5, -2, 4, 6, 2, 8, 8, 4, 6, 6

**25. Question: 2.4.63: **Consider the following sample of five measurements.

3, 4, 1, 0, 7

**26. Question: 2.8.121: **Construct a scattergram for the data in the following table.