Resale Value of a Refrigerator. Amount in dollars. Years after original purchase. The rate of change is constant in the graph. Find the rate of change. Explain what the rate of change means for the situation. A. –1; value drops $1 every year. B. –3; value drops $3 every year. C. –100; value drops $100 every year. D. negative 100 divided by 3; value drops 100 dollars every 3 years.

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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;