Can someone good at business statistics please help me answer some of my homework? Please?

From: Vanessa (glowingyou_at_yahoo.com)
Date: 11/15/04 

Date: Mon, 15 Nov 2004 02:27:08 +0000 (UTC)

I was extremely busy with my job and other subjects/projects in school
lately. I haven't had enough time to concentrate and study very well
my business statistics book. I am now cramming and have spent hours
answering my homework questions below but I cannot figure them out.
Can somebody who's good in business statistics please kindly help
answer the questions for me? Also please show the mathematical
solution?

here it is:

1. What "scale of measurement" best describe this information:

An individual respondent answers "yes" in a Roper Organization poll
whne asked if swing dancing is coming back into style.

a. ordinal scale b. ratio scale c. interval scale d. nominal
scale

2. The American Council of Life Insurance and the Life Insurance
Marketing and Research Association have reported that insured
households with heads 35 to 44 years old had an average of $95,900 of
life insurance coverage. Assuming a normal distribution and a standard
deviation of $25,000, what's the probability that a randomly selected
household with a head in this age group had less than $70,000 in life
insurance coverage?

3. Give an example of three events that would be mutually exclusive.
Are these events also exhaustive? Then, give an exaample of three
events that would be exhaustive. Are these exhaustive events also
mutually exclusive? Fully explain your response.

Your kind help would mean alot.
Thanks very much.

Vanessa

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