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

__________ What level of measurement is the data?

__________ Find the sample size n for the data.

__________ Find the median.

__________ Find the mode.

__________ Find the sample mean x.

__________ Find the sample standard deviation sx.

__________ Find the sample coefficient of variation CV.

__________ If this data were to be divided into five bins, what would be the width of a single bin?

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:

Sketch a frequency histogram chart on this paper.

____________________ What is the shape of the distribution?

p(x < 4040) = ____________________ What is the probability I will walk 4040 steps or less per day?

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?

____________________ What is the probability of rolling a five on a six-sided die numbered from one to six?

____________________ What is the probability of rolling an even number on a twelve-sided die number from one to twelve?