You roll a number cube numbered from 1 to 6. what is the probability you roll a number divisible by 4?
Answer: I think 2/6 or 1/3
A number from 16 to 23 is drawn at random. what is the probability you draw a number greater than 18?
Answer 5/7
A jar contains 21 brown, 4 violet, and 6 white marbles. A marble is drawn at random. what is the probability that you draw violet, pink, blue?
Answer 4/31, no pink, no blue
To calculate the probability of rolling a number divisible by 4 on a number cube numbered from 1 to 6, we need to determine the number of favorable outcomes (numbers divisible by 4) and divide it by the total number of possible outcomes.
There are two numbers on the number cube that are divisible by 4: 4 and 6. Therefore, the favorable outcomes are 2.
Since there are six numbers in total on the number cube, the total possible outcomes are 6.
To calculate the probability, we divide the number of favorable outcomes (2) by the total possible outcomes (6):
Probability = Favorable Outcomes / Total Possible Outcomes
Probability = 2 / 6
Probability = 1/3
So, the probability of rolling a number divisible by 4 is 1/3.
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To calculate the probability of drawing a number greater than 18 from the range of 16 to 23, we need to determine the number of favorable outcomes and divide it by the total number of possible outcomes.
There are five numbers in the given range that are greater than 18: 19, 20, 21, 22, and 23. Therefore, the favorable outcomes are 5.
Since there are eight numbers in total in the given range, the total possible outcomes are 8.
To calculate the probability, we divide the number of favorable outcomes (5) by the total possible outcomes (8):
Probability = Favorable Outcomes / Total Possible Outcomes
Probability = 5 / 8
So, the probability of drawing a number greater than 18 is 5/8.
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To calculate the probability of drawing a violet, pink, or blue marble from a jar containing 21 brown, 4 violet, and 6 white marbles, we need to determine the number of favorable outcomes and divide it by the total number of marbles in the jar.
There are 4 violet marbles in the jar, and there are no pink or blue marbles mentioned in the jar. Therefore, the favorable outcomes for drawing a violet, pink, or blue marble are 4 + 0 + 0 = 4.
The total number of marbles in the jar is 21 + 4 + 6 = 31.
To calculate the probability, we divide the number of favorable outcomes (4) by the total number of marbles (31):
Probability = Favorable Outcomes / Total Number of Marbles
Probability = 4 / 31
So, the probability of drawing a violet, pink, or blue marble is 4/31. However, since there are no pink or blue marbles mentioned, the probability of drawing a violet marble specifically would be 4/31.
If there are 6 numbers on the die, how many of them are multiples of 4? I think not 2.
How many numbers are there from 16-23? Remember to count both 16 and 23.
#3 ok
Then number one would be 3/6 or 1/2
And number 2 will be 5/8
number 2 is ok
#1. Come on! The numbers are 1,2,3,4,5,6
only FOUR is divisible by 4! P(4) = 1/6