The probability that a certain state will be hit by a major tornado (category F4 or F5) in any single year is 15. Complete parts (a) through (d) below. a. What is the probability that the state will be hit by a major tornado two years in a row?
(Simplify your answer. Round to five decimal places as needed.)
b. What is the probability that the state will be hit by a major tornado in three consecutive years?
(Simplify your answer. Round to five decimal places as needed.)
c. What is the probability that the state will not be hit by a major tornado in the next ten years?
(Round to three decimal places as needed.)
d. What is the probability that the state will be hit by a major tornado at least once in the next ten years?
(Round to three decimal places as needed.)

30

step-by-step explanation:

times by times

damm bro the struggle

step-by-step explanation:

lol we need to see what the question is asking about

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;