How do i find the sample mean if i’m only given the information: 41% of college students nationwide engage in binge drinking. a college president wonders if the proportion of students enrolled in her college that binge drink are lower than the national proportion. 348 students are selected, 132 admitted to having engaged in binge drinking. (what is the same mean, what is the sample standard deviation)

she will most likely have 33  

step-by-step explanation:

1/4 because there is 4 grades.

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x