Question

What populations can you think of that would not likely have a normal distribution?

Answer #1

There are many examples to this. Some of the examples are as followed:

- The number of accidents per hour happening at a traffic crossing.
- Waiting time for a customer in a queue. This is expressed as an exponential distribution
- Complex financial instruments valuation from future cashflows: Here non normal distributions are used as the distribution cannot have negative values ( lower bounded ) and also, the tail values are expected to be more likely (fatter tails ) than in normal distribution.

The weights of individuals in some populations are known to
follow a normal distribution with the mean 175 pounds. If 70% of
individuals are heavier than 167 pounds, then what is the
population standard deviation of weight?

Suppose that you have two populations: - Population A: you do
not know the distribution, mean, and the variance of the
population. - Population B: you do not know the distribution and
the mean of the population. But you know the variance of the
population. Now you want to build a %90 confidence level interval
for the mean of each population separately by sampling. What is the
difference between the methods you use for each population??

8- Suppose that you have two populations: - Population A: you do
not know the distribution, mean, and the variance of the
population. - Population B: you do not know the distribution and
the mean of the population. But you know the variance of the
population. Now you want to build a %90 confidence level interval
for the mean of each population separately by sampling. What is the
difference between the methods you use for each population?

Decide whether you can use the normal distribution to
approximate the binomials distribution. If you can, use the normal
distribution to approximate the indicated probabilities and sketch
their graphs. If you cannot, explain why and use the binomial
distribution to find the indicated probabilities.
A surgery of adults found that 74% of those who text on cell
phones receive spam or unwanted messages. You randomly select 100
adults who text on cell phones. Complete parts (a) through (d).
Determine whether...

Decide whether you can use the normal distribution to
approximate the binomial distribution. If you can, use the normal
distribution to approximate the indicated probabilities and sketch
their graphs. If you cannot, explain why and use the binomial
distribution to find the indicated probabilities.
A survey of adults found that 56% of those who text on cell
phones receive spam or unwanted messages. You randomly select 100
adults who text on cell phones.
a-Find the probability that the number of...

What is the biological basis for assigning all human
populations to a single species? Can you think of a scenario by
which a second human species could originate in the
future

Decide whether you can use the normal distribution to
approximate the binomial distribution. If you can, use the normal
distribution to approximate the indicated probabilities and sketch
their graphs. If you cannot, explain why and use the binomial
distribution to find the indicated probabilities. A survey of
adults found that 79% of those who text on cell phones receive
spam or unwanted messages. You randomly select 100 adults who text
on cell phones. Complete parts (a) through (d).
Determine whether...

can you give a good example of data that can be model by a
normal distribution? and please explain your argument and how it is
a normal distribution.

(1) a data distribution that you think is approximately normal,
but with a large spread (i.e. large standard deviation). (2) Use
Google or other research methods to find the mean and standard
deviation to support your claim. (3) What reasons or conditions
attribute to the large variation? (Here's my example: income - some
people make minimum wage, some people make $134M over 4 years.
Think of another example and do some research to find the standard
deviation, and answer the...

What products can you think of that would need to be adapted to
be acceptable to a foreign country market?

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 29 minutes ago

asked 33 minutes ago

asked 49 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 3 hours ago