




Card 5 / 11:
The height (sidewalk to roof) of notable tall buildings in America is compared to the number of stories of the building (beginning at street level).
Using “stories” as the independent variable and “height” as the dependent variable, make a scatter plot of the data.Does it appear from inspection that there is a relationship between the variables?Calculate the least squares line. Put the equation in the form of: ŷ = a + bxFind the correlation coefficient. Is it significant?Find the estimated heights for 32 stories and for 94 stories.Based on the data in , is there a linear relationship between the number of stories in tall buildings and the height of the buildings?Are there any outliers in the data? If so, which point(s)?What is the estimated height of a building with six stories? Does the least squares line give an accurate estimate of height? Explain why or why not.Based on the least squares line, adding an extra story is predicted to add about how many feet to a building?What is the slope of the least squares (bestfit) line? Interpret the slope.

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Questions & Answers
Sixtyfour third year high school students were given a standardized reading comprehension test. The mean and standard deviation obtained were 52.27 and 8.24, respectively. Is the mean significantly different from the population mean of 50? Use the 5% level of significance.
how do I find the modal class
look for the highest occuring number in the class
Kusi
the probability of an event occuring is defined as?
The probability of an even occurring is
expected event÷ event being cancelled
or
event occurring / event not occurring
Gokuna
Simple Bar Chart is a Diagram which shows the data values in form of horizontal bars. It shows categories along yaxis and values along xaxis. The xaxis displays above the bars and yaxis displays on left of the bars with the bars extending to the right side according to their values.
Muhammad
statistics is percentage only
the first word is chance for that we use percentages
muhammad
it is not at all that statistics is a percentage only
Shambhavi
how to calculate sample needed
mole of sample/mole ratio
or
Va
Vb
Gokuna
how to I solve for arithmetic mean
Yeah. for you to say.
James
how do I solve for arithmetic mean
please answer these questions
niharu
add all the data and divide by the number of data sets. For example, if test scores were 70, 60, 70, 80 the total is 280 and the total data sets referred to as N is 4. Therfore the mean or arthritmatic average is 70. I hope this helps.
Jim
*Tan A  Tan B = sin(AB)/CosA CosB ...
*2sinQ/Cos 3Q = tan 3Q  tan Q
what is subjective probability
how to calculate the Steadman rank correlation
David
what is sampling? i want to know about the definition of sampling.
In terms of Statistics or Research , It is a subset of population for measurement.
Da
can you solve this problem
what is the meaning of correlation ratio?
Nayeem
Source:
OpenStax, Introductory statistics. OpenStax CNX. May 06, 2016 Download for free at http://legacy.cnx.org/content/col11562/1.18
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