Depending on how a sample is drawn, it may be a random sample or a nonrandom sample. A random sample is a sample drawn in such a way that each member of the population has some chance of being selected in the sample. In a nonrandom sample, some members of the population may not have any chance of being selected in the sample. Suppose we have a list of 100 students and we want to select 10 of them. If we write the names of all 100 students on pieces of paper, put them in a hat, mix them, and then draw 10 names, the result will be a random sample of 10 students. However, if we arrange the names of these 100 students alphabetically and pick the first 10 names, it will be a nonrandom sample because the students who are not among the first 10 have no chance of being selected in the sample. A random sample is usually a representative sample. Note that for a random sample, each member of the population may or may not have the same chance of being included in the sample. Two types of nonrandom samples are a convenience sample and a judgment sample. In a convenience sample, the most accessible members of the population are selected to obtain the results quickly. For example, an opinion poll may be conducted in a few hours by collecting information from certain shoppers at a single shopping mall. In a judgment sample, the members are selected from the population based on the judgment and prior knowledge of an expert. Although such a sample may happen to be a representative sample, the chances of it being so are small. If the population is large, it is not an easy task to select a representative sample based on judgment. The so-called pseudo polls are examples of nonrepresentative samples. For instance, a survey conducted by a magazine that includes only its own readers does not usually involve a representative sample. Similarly, a poll conducted by a television station giving two separate telephone numbers for yes and no votes is not based on a representative sample. In...

...standard deviation equal to 1.0 milligram. Suppose a sample of 100 low-tar cigarettes is randomly selected from a day’s production and the tar content is measured in each. Assuming that the tobacco company’s claim is true, what is the probability that the mean tar content of the sample is greater than 4.15 milligrams?
[0.00621]
2. The safety limit of a crane is known to be 32 tons. The mean weight and the standard deviation of a large number of iron rods are 0.3 ton and 0.2 ton respectively. One hundred rods are lifted at a time. Compute the probability of an accident.
[0.1587]
3. A soft –drink vending machine is set so that the amount of drink dispensed is a random variable with a mean of 200 milliliters and a standard deviation of 15 milliliters. What is the probability that the mean amount dispensed in a randomsample of size 36 is at least 204 milliliters?
[0.0548]
4. An automatic machine in a manufacturing process is operating properly if the lengths of an important subcomponent are normally distributed with mean (μ) = 117 cm and standard deviation (σ) = 6.1 cm. Find the probability that if four subcomponents are randomly selected, their mean length exceeds 120 cm.
[0.16354]
5. The number of pizzas consumed per month by university students is normally distributed with a mean of 10 and a standard deviation of 3. What is the probability...

...points)
3. Suppose that a randomsample of size 64 is to be selected from a population having [pic] and standard deviation 5.
(a) What are the mean and standard deviation of the [pic] sampling distribution? Can we say that the shape of the distribution is approximately normal? Why or why not? (10 points)
(b) What is the probability that [pic] will be within 0.5 of the population mean? (5 points)
(c) What is the probability that [pic] will differ from the population mean by more than 0.7? (5 points)
4. In the library on a university campus, there is a sign in the elevator that indicates a limit of 16 persons. Furthermore, there is a weight limit of 2500 pounds. Assume that the average weight of students, faculty, and staff on campus is 150 pounds with a standard deviation of 27 pounds, and that the distribution of weights of individuals on campus is approximately normal. If a randomsample of 16 persons from the campus is taken:
(a) What is the mean and standard deviation of the [pic] = sample mean distribution? Can we assume the [pic] distribution is normal? Explain. (10 points)
(b) What average weights of for a sample of 16 people will result in the total weight exceeding the weight limit of 2500 pounds? (5 points)
(c) What is the chance that a randomsample of...

...Practice problem – V
Week 6
Four of the five sugars listed below are related as members of the same subgroup. Select the exception by indicating characteristic(s) of each option in the space provided thereby showing how the exception was determined. (3 marks)
a. glucose
b. fructose
c. cellulose
d. ribose
e. deoxyribose
Four of the five sugars listed below are related as members of the same subgroup. Select the exception by indicating characteristic(s) of each option in the space provided thereby showing how the exception was determined. (3 marks)
a. lactose
b. sucrose
c. maltose
d. table sugar
e. fructose
Answer the following questions using the images supplied.
a) What type of polymer is being illustrated in the diagram and what is the evidence that lead to your decision? (2 marks)
b) Label the two types of bonds illustrated in the diagram. (2 marks)
c) What two types of structures of this polymer are being shown in the diagram? To support your answer, label the diagram in which the types of structure are illustrated. (2 marks)
d) State the specific name of the structure shown. (1 mark)
Complete the following table.
| |aldohexose...

...Questions on Units 1.1 – 1.4 on Cell Components 1 The figure below shows an electron micrograph of an animal cell.
A B
centriole C
nucleus
(a) Name and state the function of the following structures. (i) Structure A
…………………………………………………………………………………………… ……………………………………………………………………………………………
(ii) Structure B
…………………………………………………………………………………………… ……………………………………………………………………………………………
(iii) Structure C
…………………………………………………………………………………………… ……………………………………………………………………………………………
(6 marks) (b) Describe the roles of centrioles in cellular division.
………………………………………………………………………………………………… …………………………………………………………………………………………………
www.asbiology101.wordpress.com
………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… …………………………………………………………………………………………………
(8 marks) (c) The nucleus is labelled on the diagram. Complete the table by putting a tick () or a cross () in each box to identify...

...07.03 Between the Fires: Assessment
Adolf Hitler
Promised more jobs and better opportunity financially
Women had to be stay at home mothers (not allowed to work)
Wanted all non-germans to be stripped of there rights or dead (like the Jews)
He was supported by anti-communist, nationalist, and the working class
His goal was to unit all german speaking people
Wanted to wage war against Britain
Born in Austria
Supported by smiler people
Both wanted unity
Wanted there countries to have justice
Francisco Franco
Made foreign investments
Refused to fight the British; fear of defeat
Stabilized Spain's economy
He used the armies power to protect Spain from liberal encroachment
Supported by anti-communist
Hitler and Franco had some stuff in common. They were both supported by anti-communist groups. And both wanted a simple thing like unity. They wanted to bring justice to there countries. And they both had something to do with Britain like Hitler wanted a war against them and Franco feared them. And they were allies.
But they both did have different opinions on some stuff. For example, Franco wanted to stay safe and not attack Britain because he wasn't sure if Germany would win. While Hitler really wanted to go against Britain and he was sure Germany would win. They also did things differently. Franco wanted to protect Spain while Hitler wanted all non-germans out or to be killed. SO they did have different opinions and views on certain things. 9/11 twin towers...

...CDC/CCCPolytechnic Bursary & MOE Bursary
IMPORTANT!
Hotline : 6550 0056
(Mon - Fri, 8.30am – 5.30pm)
Full time-diploma students who are Singapore Citizens can apply for financial assistance
ON-LINE from 16 Apr – 20 May ‘12 @: www.nyp.edu.sg
*Gross Monthly Per Capita Income (MPCI) $850 & below $1,200 & below $1,700 & below Award Quantum $1,800 $1,350 $450
CDC/CCC-Polytechnic Bursary MOE Bursary (Tier 1) MOE Bursary (Tier 2)
[Sponsored students are not eligible; Eligible students are allowed to receive only one of the above awards.] *MPCI = Total Gross Monthly Household Income No. of family members in the same household (exclude tenants and maids) How to Start? 1. Login at: a. Click on icon “CDC/CCC-Poly Bursary & MOE Bursary, Apply Now” OR b. Go to myNYP Portal (http://my.nyp.edu.sg/) 2. Place the mouse over “Financial Matters” and click on “Financial Assistance Application” Important -Please remember to click “Submit” after completing the on-line form and you will receive an acknowledgement number. What to do after on-line application? Submit income and/or supporting documents at the Student Services Centre (Blk A, Level 2) from 23 April to 23 May ’12, between 9am to 5pm. Document submission
should be done as soon as possible after submitting online application because: This will give you enough time to ensure that your supporting documents are complete. If you have missing documents, the counter staff will advise you on the additional documents...

...RANDOM LYRICS
We are young!
But we have heart
Born in this world as it all falls apart
We are strong
But we don't belong
Born in this world as it all falls apart
I see the children in the rain like the parade before the pain.
I see the love; I see the hate; I see this world that we can make!
I see the life I see the sky. Give it all to see you fly...
Yes, we wave this flag of hatred, but you're the ones who made it!
Watch the beauty of all our lies passing right before my eyes.
I hear the hate in all your words all the wars to make us hurt
We get so sick, we're so sick; we never wanted all this
Medication for the kids with no reason to live!
So we
March to the drums of the damned as we come
Watch it burn in the sun - we are numb!
We are young!
But we have heart
Born in this world as it all falls apart
We are strong
But we don't belong
Born in this world as it all falls apart
As we walk among these shadows, in these streets, these fields of battle
Take it up, we wear the medal, raise your hands with burning candles.
Hear us whisper in the dark, in the rain you see the spark
Feel the beating of our hearts fleeting hope as we depart
All together, walk alone against all we've ever known
All we've ever really wanted was a place to call our home
But you take all we are; the innocence of our hearts.
Made to kneel before the altar as you tear us apart!
So we
March to the drums of the damned as we come
Watch it burn in the...

...Frances Gwyneth Danielle F. Savilla 7-Jaena
Story Map
Voyage to a New Land
Settings:
A. Characters
* Datu Puti
* Marikudo
* Maniwantiwan
* Datu Sumakwel
* Datu Bangkawa
B. Place
* Panay
C. Time
* Pre-Spanish Period
Problem:
* Datu Puti and company escaped the tyrannical rule of the Sultan of Borneo. Sailing North, they were searching for lands to settle down. But the land they first saw and landed were occupied by Natives called Itas. Will they be allowed to settle and stay?
Goal:
* To find a land where their families will finally settle down. Datu Puti requested Marikudo to give them land to settle down.
Events:
* Finally, after consulting the tribesmen with the approval of Maniwantiwan, Marikudo give the land in exchange for the golden hat and the necklace of pearls.
Ending:
* They finally settle down along the seashore by building huts with the help of the followers of Marikudo. The community grew bigger and bigger until they occupied other parts of Panay, building the three kingdoms, the Irong-Irong, now known as Iloilo was headed by Datu Puti, Aklan, at present Aklan and Capiz was headed by Datu Bangkawa, and Hantik, now known as Antique was ruled by Datu Sumakwel.
There they cultivate the lands, planted rice, camote and other useful plants in their colony. They were expecting rich harvest and Datu Puti was satisfied.
The Occupation by Datu Puti and company went farther North and reached Southern Luzon...

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