By the Fundamental Counting Principle, the number of possible outfits is:

# of shirts x # of pair of pants x # of jackets

\(\displaystyle{5}{x}{4}{x}{2}={40}\)

# of shirts x # of pair of pants x # of jackets

\(\displaystyle{5}{x}{4}{x}{2}={40}\)

Question

asked 2020-11-03

How many 3-letter combinations of the letters in the word EIGHT are possible?

asked 2020-11-30

The spinner is spun twice. Two possible outcomes art AC and CA.

a. Create a sample space that lists all of the equally likely outcomes.

b. Refer to the sample space to find the probability of spinning A one or more times in two spins.

a. Create a sample space that lists all of the equally likely outcomes.

b. Refer to the sample space to find the probability of spinning A one or more times in two spins.

asked 2021-03-08

Describe a possible application of hypothesis testing to a business setting. The application you describe need not be a real one (one that has actually occurred), it can be an application that you invent.

You should describe

a) what the business setting is

b) what data you would use

c) what null hypothesis you would test and what the alternative hypothesis is.

d) what type of test you would use

e) You should explain what level of significance you would use and why.

f) You should explain how to interpret the outcome of the test: what does it tell you if you could reject or could not reject the null hypothesis?

g) Finally, you should explain the possible advantages of using hypothesis testing in this application and its possible downsides / dangers (when / how using a hypothesis test could lead to mistaken inferences or erroneous decisions).

You should describe

a) what the business setting is

b) what data you would use

c) what null hypothesis you would test and what the alternative hypothesis is.

d) what type of test you would use

e) You should explain what level of significance you would use and why.

f) You should explain how to interpret the outcome of the test: what does it tell you if you could reject or could not reject the null hypothesis?

g) Finally, you should explain the possible advantages of using hypothesis testing in this application and its possible downsides / dangers (when / how using a hypothesis test could lead to mistaken inferences or erroneous decisions).

asked 2021-01-27

Charlie and Clare are playing a number-guessing game. Charlie picked two numbers between 1 and 5. To win the game, Clare must guess both his numbers in three lines. Her guesses, simulated using a random-number generator are shown in the table. If Charlie's numbers are 1 and 3, what is the experimental probability that Clare won?

asked 2021-03-02

Fruit Flles An experiment with fruit flies involves one parent with notmal wings and ooe parent with vestigial wings. When these parents have an of\(\displaystyle\frac{{3}}{{4}}\) probabulty that the of\(\displaystyle\frac{{1}}{{4}}/{4}\) probability of vestigial wings. If the parents give birth to five of
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asked 2021-01-02

Geographical Analysis (Jan, 2010) presented a study of Emergency Medical Services (EMS) ability to meet the demand for an ambulance. In one example, the researchers presented the following scenario. An ambulance station has one vehicle and two demand locations, A and B. The probability that the ambulance can travel to a location in under eight minutes is .58 for location A and .42 for location B. The probability that the ambulance is busy at any point in time is .3. a. Find the probability that EMS can meet demand for an ambulance at location A. b. Find the probability that EMS can meet demand for an ambulance at location B.

asked 2021-02-03

A normal distribution has a mean of 32 and a standard deviation of 4. Find the probability that a randomly selected xx -value from the distribution is at most 35. Round to four decimal places.

asked 2021-02-08

how many different outfits can be put together if you may choose one of 7 jeans, one of 4 shirts and one of 3 belts?

asked 2020-11-26

A bag contains 6 red, 4 blue and 8 green marbles. How many marbles of each color should be added so that the total number of marbles is 27, but the probability of randomly selecting one marble of each color remains unchanged.

asked 2020-10-21

A number cube is rolled 20 times and lands on 1 two times and on 5 four times. Find each experimental probability. Then compare the experimental probability to the theoretical probability.

landing on 5

landing on 5