Louisiana Tech University PHYS 261 QUIZZES || Top Grade
Assured.
~LAB 1~
If you are using the Logger Pro interface to find the average value of some data, the fastest way
to do this is to highlight the data you want to average and use the ______________ tool. correct
answers Statistics
If you are taking measurements of a quantity that is constant and you get 10 slightly different
values, the best way to analyze the data to get an estimate of the quantity's value is to correct
answers compute an average of the 10 values
Comparing the two data sets, set A with points 5, 4, 4.5, 5, 4 and set B with 4.7, 4.5, 4.4 4.5, 4.4,
which has the larger standard deviation? correct answers Set A
When you are told an experiment has an average value of 3.2 and a standard deviation of 0.25 it
means that correct answers About two out of three values in the experiment fall in the range 3.45
and 2.95
If you are told that the temperature is increasing at a rate of 0.75 degrees a second in your
experiment at a time 2 seconds into the data collection run, the best way to check the rate of
change is to correct answers find the slope of the temperature curve by selecting points around 2
seconds to see if it is close to 0.75
In Excel, the way to enter an equation in a cell is to correct answers put a "=" sign in the cell
before the equation
The reason you have to square the differences between the values you measure and their average
value when computing a standard deviation about the mean value is that the sum of the
deviations is always correct answers zero if you don't round off so the sum cannot be used to
measure the average spread in the values
, You are given the following set of data points:
xy
12
2 2.5
3 3.0
4 3.5
The slope of the data is closest to correct answers 0.5
The intercept for the data set:
xy
12
2 2.5
33
4 3.5 correct answers is 1.5
The type of Chart in Excel that we use to plot data so the first column is on the x-axis and the
second column is on the y-axis is correct answers XY Scatter
~LAB 2~ correct answers ~LAB 2~
The built-in motion detector in the Go-Direct sensor cart reports the position traveled by the cart.
If the cart is pushed in the direction pointed by the arrow on the top of the cart, correct answers
the measured distance increases and the velocity it records is positive
Assured.
~LAB 1~
If you are using the Logger Pro interface to find the average value of some data, the fastest way
to do this is to highlight the data you want to average and use the ______________ tool. correct
answers Statistics
If you are taking measurements of a quantity that is constant and you get 10 slightly different
values, the best way to analyze the data to get an estimate of the quantity's value is to correct
answers compute an average of the 10 values
Comparing the two data sets, set A with points 5, 4, 4.5, 5, 4 and set B with 4.7, 4.5, 4.4 4.5, 4.4,
which has the larger standard deviation? correct answers Set A
When you are told an experiment has an average value of 3.2 and a standard deviation of 0.25 it
means that correct answers About two out of three values in the experiment fall in the range 3.45
and 2.95
If you are told that the temperature is increasing at a rate of 0.75 degrees a second in your
experiment at a time 2 seconds into the data collection run, the best way to check the rate of
change is to correct answers find the slope of the temperature curve by selecting points around 2
seconds to see if it is close to 0.75
In Excel, the way to enter an equation in a cell is to correct answers put a "=" sign in the cell
before the equation
The reason you have to square the differences between the values you measure and their average
value when computing a standard deviation about the mean value is that the sum of the
deviations is always correct answers zero if you don't round off so the sum cannot be used to
measure the average spread in the values
, You are given the following set of data points:
xy
12
2 2.5
3 3.0
4 3.5
The slope of the data is closest to correct answers 0.5
The intercept for the data set:
xy
12
2 2.5
33
4 3.5 correct answers is 1.5
The type of Chart in Excel that we use to plot data so the first column is on the x-axis and the
second column is on the y-axis is correct answers XY Scatter
~LAB 2~ correct answers ~LAB 2~
The built-in motion detector in the Go-Direct sensor cart reports the position traveled by the cart.
If the cart is pushed in the direction pointed by the arrow on the top of the cart, correct answers
the measured distance increases and the velocity it records is positive
