18.5 you’d add 2.5 to 16 since 12.5 - 10 is 2.5 hope this helps
The answer is 10 because the student student did not follow order of op. This means that the student added 25 and 5 together then dived that. However he should have divided 25 by 5 first and then added 5
Step-by-step explanation:
i think answer is 5 , 3-(-7)/1-(-1)
Answer:
0.25
Step-by-step explanation:
40% of the students use mac computer
67% of the students are undergraduate
23% of the students are graduates and use mainly PC
Students that use PC computers = 100 -40 = 60%
Students that are graduates = 100 - 67 = 33%
Students that are graduates that use Mac = 33 - 23= 10%
Students that are undergraduate that use PC = 67 - 30 = 37%
Using conditional probability
Pr(B|A) = Pr(A and B) / Pr(A)
Pr(Graduate | mac) = Pr(graduate and mac) / Pr(mac)
= 10%/ 40%
= 1/4
= 0.25