Answer:
1. 75%
2. 0%
3. 0.1
4. one half
5. six tenths
6. 0.75
7. 64%
Step-by-step explanation:Answer 1:
The spinner has a total of 8 sections, out of which there are 2 yellow sections. Therefore, the probability of not getting a yellow section when the spinner is spun once is 6/8 or 3/4, which is equal to 75%.
Answer 2:
The spinner has only three sections and none of them is colored yellow. Therefore, the probability of getting a yellow section when the spinner is spun once is 0%.
Answer 3:
The total number of students surveyed is:
1 + 3 + 2 + 5 + 9 + 7 + 3 = 30
The number of students who studied for 1 hour is 3. Therefore, the probability of a student studying for 1 hour is 3/30, which simplifies to 1/10 or 0.1.
Answer 4:
Since the coin is fair and has one side colored yellow and the other side colored green, the probability of getting a yellow side when the coin is tossed is 1/2 or one half.
Answer 5:
The set of cards has 10 letters, out of which 4 are vowels (A, I, U). Therefore, the number of consonants in the set is 10 - 4 = 6. The probability of drawing a consonant is therefore 6/10, which simplifies to 3/5 or 0.6.
Answer 6:
The number cube has 8 sides, numbered 1 through 8. The probability of getting a number greater than 2 is the same as the probability of getting any number from 3 to 8. There are 6 such numbers out of 8 total numbers, so the probability is 6/8 or 3/4, which is equal to 0.75.
Answer 7:
The total number of marbles in the bag is:
2 + 4 + 10 + 9 = 25
The number of marbles that are not purple is:
2 + 4 + 10 = 16
Therefore, the probability of not getting a purple marble when one marble is chosen from the bag is 16/25, which is equal to 64%.