Calculate the percentage of countries in the entire world that are located in Asia, the percentage of countries in the world that are
located in Europe and the percentage of countries in the world that
are located in Africa. Change the percentages into fractions.

Asia-25% or 1/4.      Europe-23% or 23/100.   Africa-28% or 7/25

Step-by-step explanation:

there are 194 countries in the world

there are 48 countries in Asia

there are 44 countries in Europe

there are 54 countries in Europe

Number of countries divided by 194 (the total) then multiply the answer by 100 to get your percentage. Then just put the answer in the numerator and 10. In the denominator

Asia-16/65

Europe-44/195

Africa-18/65

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;