The student will calculate and construct the line of best fit between two variables.
The student will evaluate the relationship between two variables to determine if that relationship is significant.
Collect the data
Use the most recent April issue of Consumer Reports. It will give the total fuel efficiency (in miles per gallon) and weight (in pounds) of new model cars with automatic transmissions. We will use this data to determine the relationship, if any, between the fuel efficiency of a car and its weight.
Using your random number generator, randomly select 20 cars from the list and record their
weights and fuel efficiency into
[link] .
Weight
Fuel Efficiency
Which variable should be the dependent variable and which should be the independent
variable? Why?
By hand, do a scatterplot of “weight” vs. “fuel efficiency”. Plot the points on graph paper.
Label both axes with words. Scale both axes accurately.
Analyze the data
Enter your data into your calculator or computer. Write the linear equation, rounding to 4 decimal places.
Calculate the following:
a = ______
b = ______
correlation = ______
n = ______
equation:
ŷ = ______
Obtain the graph of the regression line on your calculator. Sketch the regression line on the
same axes as your scatter plot.
Discussion questions
Is the correlation significant? Explain how you determined this in complete sentences.
Is the relationship a positive one or a negative one? Explain how you can tell and what
this means in terms of weight and fuel efficiency.
In one or two complete sentences, what is the practical interpretation of the slope of the least
squares line in terms of fuel efficiency and weight?
For a car that weighs 4,000 pounds, predict its fuel efficiency. Include units.
Can we predict the fuel efficiency of a car that weighs 10,000 pounds using the least
squares line? Explain why or why not.
Answer each question in complete sentences.
Does the line seem to fit the data? Why or why not?
What does the correlation imply about the relationship between fuel efficiency and
weight of a car? Is this what you expected?
Are there any outliers? If so, which point is an outlier?
Communication is effective because it allows individuals to share ideas, thoughts, and information with others.
effective communication can lead to improved outcomes in various settings, including personal relationships, business environments, and educational settings. By communicating effectively, individuals can negotiate effectively, solve problems collaboratively, and work towards common goals.
it starts up serve and return practice/assessments.it helps find voice talking therapy also assessments through relaxed conversation.
miss
Every time someone flushes a toilet in the apartment building, the person begins to jumb back automatically after hearing the flush, before the water temperature changes. Identify the types of learning, if it is classical conditioning identify the NS, UCS, CS and CR. If it is operant conditioning, identify the type of consequence positive reinforcement, negative reinforcement or punishment
nature is an hereditary factor while nurture is an environmental factor which constitute an individual personality. so if an individual's parent has a deviant behavior and was also brought up in an deviant environment, observation of the behavior and the inborn trait we make the individual deviant.
Samuel
I am taking this course because I am hoping that I could somehow learn more about my chosen field of interest and due to the fact that being a PsyD really ignites my passion as an individual the more I hope to learn about developing and literally explore the complexity of my critical thinking skills
hello. autism is a umbrella term. autistic kids have different disorder overlapping. for example. a kid may show symptoms of ADHD and also learning disabilities.
before treatment please make sure the kid doesn't have physical disabilities like hearing..vision..speech problem. sometimes these
Jharna
continue..
sometimes due to these physical problems..the diagnosis may be misdiagnosed.
treatment for autism.
well it depends on the severity.
since autistic kids have problems in communicating and adopting to the environment.. it's best to expose the child in situations where the child
Jharna
child interact with other kids under doc supervision.
play therapy.
speech therapy.
Engaging in different activities that activate most parts of the brain.. like drawing..painting. matching color board game.
string and beads game.
the more you interact with the child the more effective
Jharna
results you'll get..
please consult a therapist to know what suits best on your child.
and last as a parent. I know sometimes it's overwhelming to guide a special kid.
but trust the process and be strong and patient as a parent.
Jharna
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