1.Justin writes the letters I-L-L-I-N-O-I-S on cards and then places the card in a hat. What are the odds in favor of picking an I?
a. 5:3
b. 3:5
c. 3:7
d. 1:2
my answer is b?
2. Justin writes the letters I-L-L-I-N-O-I-S on cards and then places the cards in a hat. What are the odds against of picking an I?
a. 5:3
b. 3:5
c. 2:1
d. 5:7
my answer is a?
A spinner is divided into 10 equal sections numbered from 0 to 10. you spin the spinner once. what is P ( divisible by 3)?
a. 1/3
b. 1/2
c. 2/5
d. 3/10
my answer is d?
what ? there are 3 different questions
1. To find the odds in favor of picking an I, we first need to determine the number of cards with an I and the total number of cards. Since Justin writes the letters I-L-L-I-N-O-I-S, there are 2 I's in the word.
The total number of cards is equal to the number of letters in the word, which is 9.
Therefore, the odds in favor of picking an I are 2:9, which simplified is 2/9. None of the given options match this answer, so there seems to be an error in the given answer choices.
2. The odds against picking an I will be the complement of the odds in favor of picking an I. As we determined in the previous answer, the odds in favor of picking an I are 2:9.
The complement of 2:9 is 9:2. None of the given options match this answer, so there seems to be an error in the given answer choices.
3. The spinner is divided into 10 equal sections numbered from 0 to 10. So, there are a total of 11 possible outcomes - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10.
Out of these 11 outcomes, 3, 6, and 9 are divisible by 3.
Therefore, the probability of spinning a number divisible by 3 is 3/11. None of the given options match this answer, so there seems to be an error in the given answer choices.
1. To find the odds in favor of picking an I, we need to know the number of favorable outcomes (the number of I's) and the number of unfavorable outcomes (non-I's). Since there are 3 I's and 7 non-I's in the given letters, the odds in favor of picking an I would be 3:7. Therefore, the correct answer is c.
2. Similarly, to find the odds against picking an I, we need to know the number of unfavorable outcomes (non-I's) and the number of favorable outcomes (the number of I's). Since there are 7 non-I's and 3 I's in the given letters, the odds against picking an I would be 7:3. Therefore, the correct answer is not listed among the options provided.
3. Since the spinner is divided into 10 equal sections and we want to know the probability of landing on a number divisible by 3, we need to find out how many numbers from 0 to 10 are divisible by 3. In this case, they are 0, 3, 6, and 9. So, there are 4 favorable outcomes. Since there are 10 equally likely possible outcomes (numbers from 0 to 10), the probability is 4 out of 10, which can be simplified to 2 out of 5. Therefore, the correct answer is c.
10 equal sections from 0 to 10 ???
No, that is 11
1 to 10 would be ten sections
3 or 6 or 9 means answer = 3/11