All of these are intended to be group activities.
- Activity 1
Consider these two datasets
- A: Family reunion
N=20 (that is, 20 people were there)
Mean = 42.5 years
- B: Class of 1960 high school reunion
Compare and contrast the mean and variation of these two
datasets. For variation, use both 'mean deviation' (or, as
Excel calls it, 'average deviation') and standard deviation in
your discussions.
- Activity 2
Suppose that on Jim's drive to work there are three traffic
lights. Each is on a 60 second cycle where it is green for 30
seconds. What are Jim's chances of getting at least one green
light ? What are his chances of getting the green on each light ?
(Assume that the lights operate independently of each other).
Answer by doing a probability experiment.
- Activity 3
An experimental rocket has three stages. For the rocket to lift
off each stage must fire. Suppose that the probability of each
stage firing is .75. What are the chances of liftoff ? (Again, do
an experiment. or simulation)
Again, assume each stage operates indepentently of the
others.
- Activity 4
A super market has two checkout lanes operating. Suppose that on
average there are 15 customers per hour who are checking out.
Suppose also that the average (mean and median) checkout time is 5
minutes with a range of between 2 and 8 minutes. Suppose also that
the modal checkout time is 5 minutes.
Do a simulation of the checkout for 30 minutes to determine:
- (a) how many customers are checked out;
- (b) the average number of persons waiting in line; the
average number of customers service by each checkout lane.
- Activity 5
Do the measurement of the thickness of a page activity in the
textbook (pages 26-34). Download spreadsheet
and add your data then upload to your folder.
- Activity 6
Around the room are collections of cylinders (tin cans). As a
group, measure the circumference and diameter of at least six
cylinders. Plot your data on a graph, with diameter on the x
(horizontal) axis and circumference on the y axis.
- Activity 7
Car Data Set