A town’s population of children increased from 376 to 421 during the past year. Which equation shows how to find the percent increase?

Happy Pride Month!

(final-inital)/inital  *100 = percentage increase

Step-by-step explanation

421-376=45

45/376=0.11968085106

0.11968085106x100=11.9681

11.9681% increase

You need to give us the options

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;