The distribution ages for students at the state college is positively skewed with a mean of m 5 21.5 and a
the standard deviation of s 5 3.
a. What is the probability of selecting a random sample of n 5 4 students with an average age greater than 23? (Careful: This is a trick question.)
b. What is the probability of selecting a random
sample of n 5 36 students with an average age
greater than 23?
c. For a sample of n 5 36 students, what is the probability that the average age is between 21 and 22?

i wish i could you, i have no idea how to answer this

step-by-step explanation:

77

step-by-step explanation:

third choice down

step-by-step explanation:

the first inequality is based on the number of adults and campers, and the second inequality is based on the cost of feeding both the adult and the camper.

we know that there is room for 525 people max.   it's ok to have less than 525, but it's not ok to have more than 525, so the inequality is less than or equal to.   the number combination of adults (x) and campers (y) cannot exceed this 525 max.   therefore:

x + y ≤ 525

now we talk about cost.   it costs $9 to feed one adult, so depending upon the number of adults you have (x) depends upon how much it will cost to feed that number of adults.   same with the campers, who cost $5 to feed.   the adults can be represented by 9x and the campers can be represented by 5y.   since the budget cannot exceed 1,200, the second inequality is:

9x + 5y ≤ 1200