The numerator is the same, however, this does not matter if the denominator is lower than the other. 7 is less than 10. Hope this helps!
Answer:
0.45 = 45% probability that the member uses the golf course but not the tennis courts
Step-by-step explanation:
I am going to solve this question using the events as Venn sets.
I am going to say that:
Event A: Uses the golf courses.
Event B: Uses the tennis courts.
5% use neither of these facilities.
This means that
75% use the golf course, 50% use the tennis courts
This means, respectively, by:
Probability that a member uses both:
This is . We have that:
So
What is the probability that the member uses the golf course but not the tennis courts?
This is , which is given by:
So
0.45 = 45% probability that the member uses the golf course but not the tennis courts
Answer:
k = 11 let me know if you don't understand how I got this.
Step-by-step explanation:
I'm gonna write it out
U V total
S 26 42 68
T
21 k 32
Total 47 53 100
So, you want to look at the column and row labeled total, this is the key. for the row total, it sums up everything in the column above it. so for the u column, the total value is 47 while the two values above it are 26 and 21. These two values sum to 47. This is the same for all other columns, and you can use the same reasoning with the total column as well summing rows.
This gives you two ways to solve for k. either 21 + k = 32 or 42 + k = 53. Either way gets you the answer k = 11
Answer:
2.5
Step-by-step explanation:
4*2.5 = 10
Why?
4*2 = 8
4*.5 = 2