There are 8 more males students than females in a college level math class. This total number of students in the class is 26. Find
the number of male and female students.

Male - 17

Female - 9

Step-by-step explanation:

The first step in solving this problem is subtracting 8 from 26. Doing this will remove the difference between the 2 groups, 26-8=18. This means that out of 18 students there is an equal number of males and females because we already removed the 8 more male students. So, divide 18 by 2 to get the number of female students, 9. Since we know that there are 8 more males than females and 9+8=17; there must be 17 male students. Additionally, to check you can add 9 and 17 which equals 26, so the answer is correct.

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;

step-by-step explanation: