a local high - school has 1,228 students with 385 freshmen, 320 sophomores, 244 juniors, and 279 seniors…

a local high - school has 1,228 students with 385 freshmen, 320 sophomores, 244 juniors, and 279 seniors. what is the relative frequency of students who are not seniors at this school? (give an answer as a decimal rounded to the nearest tenth as needed.)

a local high - school has 1,228 students with 385 freshmen, 320 sophomores, 244 juniors, and 279 seniors. what is the relative frequency of students who are not seniors at this school? (give an answer as a decimal rounded to the nearest tenth as needed.)

Answer

Explanation:

Step1: Calculate total number of students

$385 + 320+244 + 279=1228$

Step2: Calculate number of non - seniors

$385 + 320+244=949$

Step3: Calculate relative frequency of non - seniors

$\text{Relative Frequency}=\frac{949}{1228}\approx0.773$

Answer:

$0.773$