# MS 150 Statistics quiz 05 5.3 • Name:

Pedometer
DaySteps
Sun3611
Mon10477
Tue7343
Wed8399
Thu15880
Fri6943
Sat1080
Sun1518
Mon11102
Tue3687
Wed9443
Thu9038
Fri3966
Sat6500

## Part I: Basic statistics, frequencies, histogram, z-scores, normal distribution.

The pedometer data in the table was gathered by the instructor between 20 January and 02 February 2008

1. __________ What level of measurement is the data?
2. __________ Find the sample size n for the data.
3. __________ Find the median.
4. __________ Find the mode.
5. __________ Find the sample mean x.
6. __________ Find the sample standard deviation sx.
7. __________ Find the sample coefficient of variation CV.
8. __________ If this data were to be divided into five bins, what would be the width of a single bin?
9. Determine the frequency and calculate the relative frequency using five bins. Record your results in the table provided.
Frequency table
Classes (x)Frequency (f)Relative Frequency
Sum:
1. Sketch a frequency histogram chart on this paper.
2. ____________________ What is the shape of the distribution?
3. p(x < 4040) = ____________________ What is the probability I will walk 4040 steps or less per day?
4. p(x > 9960) = ____________________ The goal of the 10000 step program is to walk 10000 steps per day. What is the probability that I will walk greater than 9960 steps or more per day?
5. ____________________ What is the probability of rolling a five on a six-sided die numbered from one to six?
6. ____________________ What is the probability of rolling an even number on a twelve-sided die number from one to twelve?