Answer
a)0.01
b)0.011
c)result from b)
d)Yes.
Work Step by Step
a) From the table, the probability of getting exactly 1 girl is: $P(X=1)=0.01.$
b)From the table, the probability of getting at most 1 girl is: $P(X\leq1)=P(X=0)+P(X=1)=0.001+0.01=0.011.$
c)The result from b) because it gives us the probability for the range of 0 to 1 whilst a) only gives us the probability of 1.
d) 1 is an unusually high number of girls, because 0.011<0.05.