Answer:
28 non-blue marbles.
Step-by-step explanation:
Initial probability of choosing a blue marble = 4/12
Let the number of non-blue marbles to be added be x.
(cross multiply)
Answer:
3 and 4 x=25, y=29
Step-by-step explanation:
If you need a step by step explanation, I will edit this later.
First add what is in the parenthesis. Which would be 14+34=48
Then multiply that by 3. 3 x 48=144
Answer:
The expectation and variance for the number of 1s in the sequence of die rolls is: 1/6
If the coin was unfair the change is: 1/2
The probability of obtainig heads was: 51%
Step-by-step explanation:
In probability and statistics theory:
The expectation and variance possibilities gotten rolling one dice are six.
In independent Bernoulli trials sequence with probability 1/2 of success on each trial is metaphorically called a fair coin.
By the other hand if the probability is not 1/2, it is called a biased or unfair coin.
It might be thought that the toss of a coin is always a 50/50 probability, with a 50 percent chance it lands on heads, and a 50 percent chance it lands on tails but if it starts out as heads, there's a 51% chance that it will end as heads.
Answer:
6*n < - (39 + 3/4)
Step-by-step explanation:
Let's do it in steps:
"Six times a number" can be written as:
6*n
Where n is the "number"
"... is less than negative thirty-nine and three-quarters "
then we have:
6*n < - (39 + 3/4)
This is the inequality we wanted, now we can also solve this for n as:
n < -(39 + 3/4)/6
