Math Is Fun Forum

I have one question about synthetic division...
In this process, the last number in the 3rd row is the remainder, i know that remainder is always positive.
but, what if the number that you get is negative?

so what does that mean?

1.    In a board of directors composed of 8 people, how many ways can a chief executive officer, a director and a treasurer be selected?

2.    How many ways can 7 different types of soaps be displayed on a shelf in a grocery store?

3.    An inspector must select 3 tests to perform in a certain order on a manufactured part. He has a choice of 7 tests. How many ways can he perform 3 different tests?

4.    The Anderson Research Company decides to test market a product in 6 areas. How many different ways can 3 areas be selected in a certain order for the first test?

5.    How many different ways can 4 tickets be selected from 50 tickets if each ticket wins a different prize?

6.    How many different signals can be made by using at least 3 distinct flags if there are 5 different flag from which to select?

7.    How many different code words can be made using the letters A, A, A, B, B, C, D, D, D, D if the word must contain 10 letters?

8.    A store owner has 50 items to advertise and she can select one different item each week for the next 6 weeks to put on special. How many different ways can the selection be done?

9.    How many different ways can 5 people A, B, C, D and E seat in a row at a movie theater if
(a)    A and B must sit together
(b)    C must sit to the right of, but not necessarily next to, B.
(c)    D and E will not seat next to each other

Prove that

s²=((n∑fx²-(∑fx)²)/(n(n-1)))=c²[((n∑fd²-(∑fd)²)/(n(n-1)))]

Where c = class size and d = values of deviation

hello,
can someone please help me with this?

What are the exact values of 1/2! and -1/2!
(what are the exact values of one half factorial and negative one half factorial?)

compute

1. C (-8,8)
2. C (-4,14)
3. C (-16,4)
4. C (-11,5)
5. C (-20,13)

hi,
right now i am taking the subject statistics, and we will be having a research work or should i say a baby thesis.
and i am thinking of a topic to research.

i know many of you here have a good idea.
Can you give me a topic for my research?
uhmm... i want something unique.:P

thanks.

Frog: What does my future hold?

Fairy: You’ll meet someone who wants to know everything about you.

Frog: GREAT! Will I meet her in a party?

Fairy: NO…

          … In a Biology Class.

:P:P

Can you please help me with this?! because i find it a bit long...

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Define the following terms and give at least 2 examples in each term.
1. Quantitative data
2. Qualitative data
3. Discrete variable
4. Continuous variable
5. Dichotomous
6. Trichotomous
7. Multinomous

for scales of measurements
1. Nominal
2. Ordinal
3. Interval
4. Ratio

for sources of data
1. Primary
2. Secondary

For collection of data
1. Interview
2. Questionnaire
3. Observation
4. registration or Census
5. Experimentation

for statistical presentations
1. Textual
2. Tabular
3. Graphical / Chart
   a. line graph
   b. bar graph
   c. pie graph
   d. pictograph
   e. map /cartogram
   f. scatter diagram

for sampling procedures and procedures
1. Target population
2. Accessible population
3. Element
4. sampling Frame
5. Probability Sampling
-- simple random sampling
-- systematic sampling
-- stratified random sampling
-- cluster sampling
6. Nonprobability sampling
-- convenience or accidental / incidental sampling
-- quota sampling
-- purposive sampling

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Thanks! ^_^

Can someone help me answer this?

Given that p does not divide n for all prime.
p is less than or equal to cube root of n.

Show that n is either a prime or the product of two prime.

(Hint: Assume to the contrary that n contains at least three prime factors.)