Students then divided into learning pods to apply all the skills that they learned during this chapter to prepare for tomorrow's Chapter One summative posttest.
Today's Learning Goals: The student will be able to...
- evaluate expressions for given values.
- solve one and two-step equations with addition, subtraction, multiplication and division.
- solve and graph inequalities.
- simplify algebraic expressions and equations by implementing the distributive property when needed.
- determine if an ordered pair is a solution to an equation.
- graph points on a coordinate plane.
For Evening Practice, it is suggested that the student...
- review all notes, videos, handout and pre-assessments to help with test preparation.
In Pre-Algebra today, students began class by solving the following problem:
Brock has taken 6 tests in Bio-Mechanical Engineering at Stanford and his average grade is an 85. If he gets 100, a perfect score, on his next three assessments, what will his new average be?
Once that question was discussed with colleagues and a solution was explained by the students, class moved into Lesson 4.3: Measures of Central Tendency.
This lesson begins with some familiar terms: mean (average), median and mode along with a new term outlier. We discussed how an outlier impacts the mean (average) and why that is and how we can analyze data more closely by determining the measures of central tendency.
Today's Learning Goals: The student will be able to...
- find and calculate different measures of central tendency.
- determine which measure of central tendency best represents a set of data.
For Evening Practice, it is suggested that the student...
- complete Khan Skill: Average Word Problem (Two Stacks): You may use a calculator.
- identify the population, sample, sampling method and possible bias to the scenario below.
- post your Comment to the blog.
A pollster wants to know who is going to vote for their national candidate. They select to poll the Midwest states and randomly call people from those states and ask them who they are voting for, Candidate X or Candidate Y. They then post their results on an online blog and say that Candidate X, their candidate, was chosen 74% of the time.
Population:
ReplyDeleteSample:
Sampling Method:
Possible Bias:
LJB
population: anyone who can vote
ReplyDeletesample: anyone in the Midwest stats.
sampling method: stratified
possible biased: some people over 18 can't legally vote because they are from a different country.
~Heidi
Mr.Giomimi
ReplyDeleteP= People who vote
S= People who live in the Midwest states
SM= Stratified
Why there is possible bias?= The pollster might have knew who people were going to vote for. So the pollster might have called only people who were going to vote for their candidate.
-Hart
population:anyone in the USA
ReplyDeletesample:anyone in the midwest
Bias: this sample could be bias because there might be
some law in the midwest that one candidate doesn't cover
that the other does therefore more people in the midwest
would vote for the one that covers their law.
YBS
(your best student)
Population:The whole nation
ReplyDeleteSample:Mid-west states
sampling method:Random
Bias: Maybe the mid-west states are known for voting for one of the candidates sides.
from,
baugh
Population:The Nation
ReplyDeleteSample:Midwest States
Sampling Method:Stratified
Bias:Some of the states could be only voting for one of the candidates or some of the states could be a swing state and vote for only one candidate
LJB
Sarah
ReplyDeletePop-mid west states
Sample-people from Midwest states
Sm- stratified
Bias-people from the Midwest states could want a different canident
Population: People living in the country
ReplyDeleteSample: Midwest people
Sampling method: Stradified
Bias: Only people in Midwest
Nathan
Population- everybody who lives in the country
ReplyDeleteSample- everybody who lives in the Midwest
Sampling method- stratified
Biased-NONE
pop= all the people that live in the country
ReplyDeletesample= midwest people\
SM= stradified
Bias= some people cant vote because they are younger then 18 so they cant have all the people in midwest vote
Population=People able to vote
ReplyDeleteSample=People living in the Midwest
Sampling Method=Stratified because people chosen randomly from subgroups
Possible Bias=Only states in the Midwest and who their candidate.
Professor
Pop: the nation
ReplyDeleteSample: people who live in the Midwest
Sample method: stratefied
Bias: the pollster might have known that the Midwest would vote for candidate X
Apples
Population: All the people that live in the country
ReplyDeleteSample: Midwest people
SM: Stratified
Bias: Some people cant vote because they are to young or people just didn't vote
Grape
p= citizens of the country
ReplyDeletes= citizens in the Midwest
sm= stratified
Bias= the people being polled could have relation to the winning candidate or are their friends.
Lloyd's of London
Mr.Giomini,
ReplyDeletepopulation= people living in the United States
Sample= Midwest region residents
Bias= If only taking people from the midwest could not give a perfect result the pollster needed to ask the whole country. There are also people in the midwest that can't vote.
Zimms
POP-Voters
ReplyDeleteSAMPLE-MID-WEST VOTERS
S.M.-STATIFIED
BIASED-THEY ONLY POLLED THE MIDWEST AND NOT THE MID-WEST AND NOT THE WHOLE NATION
-MADAGASCAR
Population:Everyone in the U.S.
ReplyDeleteSample: The people that live in the Midwest
SM:Stratified
This is bias because if the canidate for the midwest is X than of corse more people will vote for there canidate so this is not acuat becuse on voting day all of America will be voting not just the midwest so X might not be as populare.
Brock Lesner
population: The people who live in the country
ReplyDeleteSample: People chosen in the Midwest
Sampling Method: Stratified
Possible Bias: They did not ask most of the people in the country, only the Midwest. They should ask everybody for a nation wide vote.
Population- Midwest States
ReplyDeleteSample- Random People called in the Midwest
Sampling Method- Stratified
Biased- It could be biased because since they randomly selected people and called them, they could call kids our age. You would have to be at least 18 to vote. That would change the results.
PISHNER
Population- USA
ReplyDeleteSample- Midwest states
Sample Method- Stratified
Bias- Some people might want different canidates
population: Everyone that can vote
ReplyDeletesample: people in the Midwest
sampling method: stratified
possible bias: People might be under the age of 18.
Kauf
Dear Mr. Giomini,
ReplyDeleteThese are my answers to the question. Enjoy.
Population: Anybody in the Midwest.
Sample: People who are voting for the canidates.
Sampling Method: stratified
Possible Bias: Some people might have not decided who to vote for yet.
Wikipedia
Population: Anyone who can vote.
ReplyDeleteSample: People in the Midwest.
Sampling Method: Stratified.
Possible Bias: the pollsters could have talked them into voting for Candidate X.
From,
Detroit
PS: I got a magellan badge on Khan!!!!!
Population: Nation
ReplyDeleteSample: Midwest residents
SM: Stratified
Bias: The people who were asked were from where candidate X was. So they will probably vote for candidate X.
-Peters
Population:People who live in the Country
ReplyDeleteSample:People who live in the Midwest
Sampling method: Kids cant vote and some people just choose not to vote
Pop the nation
ReplyDeleteSample the Midwest people
Sampling method stratified
Bias some people were to young and can't vote
Population: people in the country
ReplyDeleteSample: Midwest States
Sample Method: Stratified
Bias: Yes, it could be bias because the poller may have known that the midwest may normally vote for a certain party.
Cline Calvin
Mr. Giomini,
ReplyDeleteHere is what I got for the problem-
Population: People in the United States of America
Sample: People who live in the Midwest
Sample Method: Random
Possible Bias: People who don't have home phones won't be included in the sample because they might just have cell phones.
Sincerely,
Serra The Terra
Population:The Midwest
ReplyDeleteSample:Random
SM:Random
Possible Bias:The people who took the poll might of known that people in the Midwest states like Candidate X better.
Population:People who live in the country
ReplyDeleteSample: People who live in the Midwest
SM: Stratified
Bias: People who live in other parts of the county may have had a different opinion
Owen Forrey
Mr Giomini this is not for the question above, for number 21 for Math 6 homework the correct answer is 12b+4 you had 5 but 9-5 is 4 not 5
ReplyDeleteGraney
Population:The Nation
ReplyDeleteSample: People In The Midwest
Sample Method: Stratified
Bias: The Midwest states may be know for vote for candidate X.
-Stews
Population: The Nation
ReplyDeleteSample: People in the Midwest
Sample Method: Stratified
Bias: People in the other parts of the country could have a different opinion.
-Jantzy
Population: The Nation
ReplyDeleteSample: People in the Midwest
Sample Method: Stratified
Bias: Only one canidate might have visited the midwest