ρ (g/cm³)
1.32
1.46
0.85
1.68
1.34
1.22
0.68
1.11
1.09
1.40

MS 150 Statistics quiz three • Name:

The table is a sample of soap densities as measured by the SC 130 Physical Science students fall 2009.

  1. __________ What is the level of measurement?
  2. __________ Find the sample size n.
  3. __________ Find the minimum.
  4. __________ Find the maximum.
  5. __________ Find the range.
  6. __________ If this data is divided into five classes, what is the width of a single class?
  7. Determine the frequency and calculate the relative frequency using five classes. Record your results in the table provided.
Class upper limitsFrequency FRelative Frequency p(x)
Sums:
  1. Sketch a frequency histogram of the data, labeling your horizontal axis and vertical axis as appropriate.
  2. __________ What is the shape of the histogram?
  3. __________ [Toughie] How many different brands of soap appear to have been used in the laboratory?