Math 1120  Review for the First  Exam Spring 2011

Express each of the following fractions in simplest form.

Solutions to all but the final problem on the review are posted as an attachment here. We will discuss the final problem briefly in class on Friday.
Calculate the mean, median and mode for each of the following data sets.
4, 8, 3, 3, 5, 3, 5, 7, 1, 9, 0, 2
18, 22, 22, 17, 30, 18, 12
Selina claimed that in her class all of the scores on a test were either 100 or 50, so the mean must be 75. Explain whether or not this reasoning is valid.
Use the data in the table to calculate the following:
Range.
Mean.
Variance.
Standard Deviation.
The youngest person in a company is 24 years old. The ranges of ages is 34 years. How old is the oldest person in the country?
The solutions to the review are attached to this post. Please inform me if you spot any errors, or find something questionable.
The review for test 2 is attached to this post.
The solutions to the review for test 1 are attached to this post. We will be covering these questions on Wednesday in class. Bring any questions you may have!!
Math 1120  Review for the First  Exam Spring 2011
Express each of the following fractions in simplest form.
© 2011 Jason B. Hill. All Rights Reserved.