Can someone (preferably one of the long-term tutors) check my answers:
researchers trap 23 devils, and find that 18 of them are infected. provide an estimate of disease prevalence.
p-hat = (18/23)=0.783 part ii: assuming the same disease prevalence from above.
if they trap 2 devils, what’s the probability that they will get an appropriate pair (i. e. one uninfected female and one uninfected male)?
i used combinatorics: 23 total, 18 infected and 5 uninfected prevalence: 0.783 5c2/23c2 = 10/253 = 0.0395 (0.) = .0309 or 3.1% just need to make sure i'm on the right track. for your .

Maddie's rectangular kitchen has an area of 10 square yards and a length of 3 3/4 yards.how many yards wide is maddie's kitchen?

Determine if the following statement is true or false. the normal curve is symmetric about its​ mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about its​ mean, because the mean is the balancing point of the graph of the distribution. the median is the point where​ 50% of the area under the distribution is to the left and​ 50% to the right.​ therefore, the normal curve could only be symmetric about its​ median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with one​ peak, which means the​ mean, median, and mode are all equal.​ therefore, the normal curve is symmetric about the​ mean, mu. c. the statement is false. the mean is the balancing point for the graph of a​ distribution, and​ therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of a​ distribution, and​ therefore, all distributions are symmetric about the mean.

How do i i solve this equation? -18 = x/3 + 3