Calvin wants to know the proportion of students at his school who plan to attend college. He interviews a random sample of students at his school.
He finds that 70% of the students in the sample plan to attend college.
What conclusion can he draw from the sample?
A Exactly 70% of the students at his school plan to attend college.
B
It is likely that about 70% of the students at his school plan to
attend college.
с
Every random sample will find that 70% of the students plan
to attend college.
It is likely that 70% of the students at his school were selected
for the sample.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?

The radius of a sphere is 3 inches. which represents the volume of the sphere?