Physicists perform an experiment to measure the mass of the Omega-minus ( – ) pa
ID: 1611324 • Letter: P
Question
Physicists perform an experiment to measure the mass of the Omega-minus ( – ) particle in the typical mass units of elementary particle physics - millions of electron volts (MeV). Their data is shown below.
Mass of the
Omega-Minus
Mass (MeV)
1673.09
1671.25
1672.00
1672.91
1674.60
1672.42
1672.46
1672.96
1672.56
1673.15
A different research group performs the same experiment using the same equipment and the same number of trials.
What is the probability that the mean – mass obtained by the new group would be less than 1672.567 MeV (in % to 3 significant digits)?
Explanation / Answer
the average of
the values are
1673.09
1671.25
1672.00
1672.91
1674.60
1672.42
1672.46
1672.96
1672.56
1673.15
-----------
16727.4 / 10 = 1672.74
is the average is greater than the 1672.567 MeV
this value will be less than 1672.567 MeV is with excluding 1674.60
so form teh given data
P1 = P2 = 9 / 10
P = P1 X P2
P = 9/10 X 9/10
P = 0.81
P = 81 %