Astudy of immunizations among school‑age children in california found that some areas had rates of unvaccinated school‑age children as high as 13.5% in 2014. imagine a classroom of 20 children in one such area where 13.5% of children are unvaccinated. if there are no siblings in the classroom, we are willing to consider the vaccination status of the 20 unrelated children to be independent. (a) obtain the probability that none of the 20 children in such a classroom would be unvaccinated. (enter your answer rounded to three decimal places.)

were is the equation

answer: idk

step-by-step explanation:

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;