Answer:
The answer is 115/1957 and in decimal form is 0.0558634
Step-by-step explanation:
Answer:
![\dfrac{17}{72}](https://tex.z-dn.net/?f=%5Cdfrac%7B17%7D%7B72%7D)
Step-by-step explanation:
From the given information:
Total number of students, ![n(U)=72](https://tex.z-dn.net/?f=n%28U%29%3D72)
The choices were: Chess(C), Swimming(S), and Football(F).
Everyone liked at least one sport except 7 kids, ![n( C \cup F \cup S)'=7](https://tex.z-dn.net/?f=n%28%20C%20%5Ccup%20F%20%5Ccup%20S%29%27%3D7)
Chess is not an active sport; and
10 children liked Chess only, ![n( C \cap F' \cap S')=10](https://tex.z-dn.net/?f=n%28%20C%20%5Ccap%20F%27%20%5Ccap%20S%27%29%3D10)
The probability that a randomly-chosen child from this group does not like active kinds of sport is the Probability that a student plays chess only or like no kind of sport at all.
![P( C \cup F \cup S)'+P(C \cap F' \cap S')=\dfrac{n( C \cup F \cup S)'+n(C \cap F' \cap S')}{n(U)} \\=\dfrac{10+7}{72} \\=\dfrac{17}{72}](https://tex.z-dn.net/?f=P%28%20C%20%5Ccup%20F%20%5Ccup%20S%29%27%2BP%28C%20%5Ccap%20F%27%20%5Ccap%20S%27%29%3D%5Cdfrac%7Bn%28%20C%20%5Ccup%20F%20%5Ccup%20S%29%27%2Bn%28C%20%5Ccap%20F%27%20%5Ccap%20S%27%29%7D%7Bn%28U%29%7D%20%5C%5C%3D%5Cdfrac%7B10%2B7%7D%7B72%7D%20%5C%5C%3D%5Cdfrac%7B17%7D%7B72%7D)
Answer:
false
Step-by-step explanation:
a natural number is a number you count by, you wouldn't cound by decimals or fractions
Answer:
2000 because you got to subtract
Answer:
585
Step-by-step explanation:
This sort of problem can be solved using a 2-way table that categorizes tourists by combination of destinations. Of the four possible combinations, one is ruled out (China, but not India). We can determine percentages and numbers for the combinations of interest using the given data.
__
80% have been to India, so 20% have not. All of those have also not been to China. Since tourists in that category number 260, there must be ...
260/20% = 1300 . . . tourists surveyed
Of the 80% who have been to India, 35% have been to China. That leaves 45% who have been to India, but not China. This number is ...
45% × 1300 = 585
The number of tourists who have been to India, but not China, is 585.