Kim's class has 16 boys and 8 girls. Which of the following represents the part of the class that is boys?

2/3 of the class are boys

Step-by-step explanation:

16+8 is the total class which is 24 students.

To write it as a fraction it would be 16/24 (simplified is 2/3)

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;

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative