# MS 150 Statistics | Test 01 | 26 January 2012 Name:

table one
Soap density
0.76
0.81
0.84
0.86
0.87
0.87
0.89
0.90
0.92
0.96

The data in table one is the Ivory soap density data from physical science laboratory one in grams per cubic centimeter.

1. _______________ What level of measurement is the data?
2. __________ Calculate the sample size n.
3. __________ Calculate the minimum.
4. __________ Calculate the maximum.
5. __________ Calculate the range.
6. __________ Calculate the midrange.
7. __________ Calculate the mode.
8. __________ Calculate the median.
9. __________ Calculate the sample mean x.
10. __________ Calculate the sample standard deviation sx.
11. __________ Calculate the sample coefficient of variation CV.
12. __________ If the data set is divided into five classes, what is the width of a single class?
13. Determine the frequency and calculate the relative frequency using five classes. Record your results in the table provided.
Class upper limitsFrequency FRel. Freq.
Sums:
14. Sketch a frequency histogram, labeling your horizontal axis and vertical axis as appropriate.
15. What is the shape of the histogram?
16. __________ Using the above statistics for the data in table one, calculate the z-score for 0.76 grams per cubic centimeter.
17. __________ Is 0.76 g/cm³ an ordinary or extraordinary value?
Table two
Fav colors
black
black
black
black
black
blue
blue
blue
red
red
red
1. _______________ What is the level of measurement for the data in table two?
2. __________ What is the sample size n for the data in table two?
3. _______________ For the type of data in table two, what would be the appropriate statistic for measuring the middle?

Table three contains frequency data on the favorite colors of students in MS 150 Statistics this term.
Table three
Favorite colorsFrequency f
black15
brown11
green11
blue9
purple8
red8
pink7
white4
yellow2
Sum:75
4. _______________ What is the level of measurement for the data in table three?
5. __________ What is the sample size n for the data in table three?
6. __________ What is the mode for the data in table three?