Page 114 number 4.73. X is the random variable telling
how many of the 200 men become blind. The event that
a man becomes blind is p=0.0067. The event that k
men become blind is B(n,k) p^{ k} (1p)^^{nk}.
For k=2, this is 0.36

Page 114, number 4.74 Now p=0.0074. The event that
at least 2 woman get blind is {X > 1}, which has probability
1 P[ X =1 or X=0 ] = 1P[X=1]P[X=0]=0.436

Page 114, number 4.82
Similar as before.
The smallest value of k such that P[X less or equal to k] is greater or equal
to 0.95 is k=8 beds. 
Page 114, number 4.83 P[X=4]=0.096 
Page 147, number 5.6: P[X>140] = 0.212 
Page 147, number 5.7: P[X<90] = 0.0446 
Page 149, number 5.41: Only 53 percent fall in the normal range. 
Page 149, number 5.42: 0.9 percent of normal people should have
values that are at lesat 1.5 times the upper limit of normal. 
Page 149, number 5.44: The probability is 0.00008 
Page 161, number 5.61: The probability is 0.009 