To find percent of a number, 1- multiply

2- divide

the number by the fraction or decimal equivalent of the

1- number

2- percent.

To find an unknown percent or part, solve a proportion comparing the

1- part

2- percent

to the ratio of

1- percent

2- part

to whole.

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;

answer: 40392

step-by-step explanation:

10098 x 4 = 40392

3

step-by-step explanation:

because where the point where the 2 lines intersect is (3,-1) the x value is 3