If the mean number of cigarettes smoked by pregnant women is 12 and the standard deviation is 8, find the probability that in a random sample of 100 pregnant women the mean number of cigarettes smoked will be greater than 20. What does this mean (within your population).

Similar Questions

Since 1964 the number of cigarettes smoked has
1. 5 answers
Since 1964, the number of cigarettes smoked has(1 point)
1. 1 answer
Since 1964, the number of cigarettes smoked hasA. increased dramatically. B. decreased to near zero. C. remained steady. D.
1. 1 answer
Since 1964 the number of cigarettes smoked hasIncreased dramatically Decreased to near zero Remained steady Declined steadily
1. 1 answer