In a binomial distribution:

A) the random variable X is continuous.
B)the probability of event of interest (pie symbol)is stable from trail to trial
C) the number of trials n must be at least 30
D) the results of one trial are dependent on the results of the others.
I narrowed it down to A or B

2 answers

B is the answer
Compute the standard deviation mc006-1.jpg for ages of British nurses in 1851 if the mean mc006-2.jpg is 53.75. Assume that the table below shows the age distribution of nurses in Great Britain in 1851. Round your answer to nearest hundredth.