**Homework assignment #4**

Slightly modified exercise 4.12 from Bevington, and question 6.4 from Bevington. The questions are reproduced below.

**4.12** Take the data that
you
used in HW #1, problem 1 (text or xls) , and the
histogram you generated of the data in 5-point bin intervals. Plot a
Gaussian
curve based on the mean and standard deviation of the data, normalized
to the area of the histogram. Apply the chi-square test and check
the associated probability from table C.4 in Bevington. (For a
definition
of the "chi-square" test, see section 4.3 of Bevington, or Taylor Chpt
12.)

**6.4** Derive a formula for
making
a linear fit to data with an intercept at the origin so that y = bx.
Apply
your method to fit a straight line through the origin to the following
set
of data (text or xls).
Assume uniform uncertainties of
s* _{i}*=2.0
in y