Mathematics: A survey of 800 students yielded the following information: 519 were seniors, 430 were commuters, and 300 of the seniors were commuters. How many of the 800 surveyed students were seniors or were commuters?

A survey of 800 students yielded the following - id8009464689, dogisreallyeggroll

sylvusia

11.02.2022

The number is $(S \ u \ C ) = 649$

Step-by-step explanation:

From the question we are told that

The sample size is n = 800

The number of seniors is S = 519

The number of commuters is C = 430

The number of of seniors that are commuters is $(S\ n \ C )= 300$

Generally the number of 800 surveyed students who were seniors or were commuters is mathematically evaluated as

$(S \ u \ C ) = S + C - ( S \ n \ C )$

=> $(S \ u \ C ) = 519 + 430 - 300$

=> $(S \ u \ C ) = 649$

0,0(0 оценок)

dm0321545

20.11.2021

Food, clothing, and medical are variable expenses because they occur regularly but can change from month to month.

just did it for 2020 EG

0,0(0 оценок)