Scored an 85% on her last quiz. The quiz had 40 questions on it. How many questions did she answer correctly?

34/40

Step-by-step explanation:

34 questions

Step-by-step explanation:

85% = 17/20

17/20 x 40 =

2 x 20 =

34

Hope that helps!

-Sabrina

the answer is two. hope this !

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;