a single standard number cube is tossed. what is the probability of getting a 4 or 5?

The probability of getting a 4 or 5 on a single standard number cube is 2/6 or 1/3, since there are 2 favorable outcomes (rolling a 4 or 5) out of 6 possible outcomes (rolling a 1, 2, 3, 4, 5, or 6).

a standard number cube with the numbers i though 6 rolloes. find the probability of rolling a number greater than 5.

The probability of rolling a number greater than 5 on a standard number cube is 1/6, since there is only one favorable outcome (rolling a 6) out of 6 possible outcomes (rolling a 1, 2, 3, 4, 5, or 6).

a number cube is rolled 360 times and results are recorded as follows 96 ones 31 twos 49 threes 76 fours 45 fives and 63 sixes. what is the experimental probability of rolling a 2 or a 3?

The number of times "2 or 3" is rolled is 31 + 49 = 80.

The total number of rolls is 360.

The experimental probability of rolling a 2 or a 3 is:

80/360 = 2/9

Therefore, the experimental probability of rolling a 2 or a 3 is 2/9.

in decimal form

The experimental probability of rolling a 2 or a 3 in decimal form is approximately 0.2222, when we divide 2 by 9 using a calculator or long division.

is that answer the same as 0.22?

No, the answer 0.2222 is not the same as 0.22.

When we round 0.2222 to two decimal places, we get 0.22. However, rounding to two decimal places can result in a loss of accuracy.

It's important to keep in mind that the exact answer is 0.2222, and that 0.22 is only an approximation. In many situations, it may be appropriate to use 0.22 as an estimate of the probability, but in some cases, using the exact answer may be necessary.

from a barrel of colored marbles you randomly select 6 blues 4 yellow 2 red 3 green and 5 purple marbles find the experimental probability of randomly selecting a marble that is not yellow