In a certain country, the true probability of a baby being a boy is 0.524. Among the next five randomly selected births in the
1 answer:
Answer:
The probability that at least one of them is a girl is 0.96049.
Step-by-step explanation:
In a certain country, the true probability of a baby being a boy is 0.524.
This is a binomial problem.
p(boy) = 0.524
n = 5
p(girl) =
P(at least one girl) = 1 - p(5 boys) = = 0.96049
Hence, the probability is 0.96049.
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Answer:
98.1, No does not contain, yes contains.
Step-by-step explanation:
Given that
sample size n =103
Sample mean = 98.1
sample std dev s = 0.56
a) the best point estimate of the mean body temperature of all healthy humans = sample mean =98.1
b) 99% confidence interval estimate of the mean body temperature of all healthy humans
We can use Z critical since sample size is large though sigma is not known
99% CI =
This does not contain 98.6
This sample does not represent the population, i.e. may be biased sample.
c) CI of population mean
= populaiton mean + /- margin of error
=(98.545, 98.656)
Yes contains 98.6