I just really need help with this question. I was not in class when we learned about this.

I just really need help with this question. I was not in class when we learned about this.

I tried this problem and my numbers weren't adding up. No need to make a table just the probability of each value is good enough.

A fair die is rolled and a fair coin is tossed. The random variable X is defined as the number obtained on the die minus the number of heads (0 or 1) resulting on the coin. Calculate and write down...

Please help me with this problem

The heights of a given population are normally distributed with a mean of 5.8 ft and a standard deviation of 0.3 ft. What is the cutoff height to be in the top (tallest) 10% of the population? That...

Given that E and F are sets and n(E \ F) =12 and n(F \ E) = 30, what is the smallest possible value for n(E ∪ F)?

A company produces regular and deluxe ice cream at three plants. Per hour of operation, Plant A produces 40 gallons of regular ice cream and 20 gallons of deluxe ice cream. Plant H produces 20 gallons...

An urn contains 5 yellow balls and 3 green balls. A ball is drawn randomly. In its place one of the other colored balls is added to the urn. Let Yi; and Gi respectively be the event that ball...

given the system,change to matrix form.then use Gaussian elimination to get it to reduced Row Echelon Form.Then state the solution: 3x-4y-6z=-19 -3x+2y-4z=-21 5x-y+2z=0

i dont understand how to solve this problem

Suppose that a 4-digit pin number is to be formed with the digits in {0, 1, ,2 ,3 ,4 ,5, 6, 7, 8, 9}. What is the probability that the pin number contains at least 3 odd digits?

You have two coins. One is fair and the other is unfair with the probability of heads being 0.6. First the fair coin is flipped with the outcome being recorded. If the result is tails,...

An unfair coin with Pr[H]=0.28 is flipped. If the flip results in heads, a student is selected at random from a class of 10 boys and 7 girls. Otherwise, a student from a different class containing...

How many ways can you pick an ace followed by a card that is less than the number 5 from a deck of 52 cards (no replacement)?

A theater estimates that 35 people will come to a movie if it is not raining. If it rains, it is estimated that 65 people will show up. If there is a 25% chance of rain, what is the expected number...

A pharmaceutical company has two drug trials coming up. For the first trial, they project a 60% success rate. For the second trial, however, they project a 45% success rate. Based on these...

6r-5s+2t=-14 5r+s-4t=27 -6r+3s-3t=15

A pharmaceutical company has two drug trials coming up. For the first trial, they project a 60% success rate. For the second trial, however, they project a 45% success rate. Based on these...

You have two coins. One is fair and the other is unfair with the probability of heads being 0.6. First the fair coin is flipped with the outcome being recorded. If the result is tails,...

Here's the whole problem and what it's asking: Assume that you select digits from the set {2,4,6,7,8,9} to form a number between 20 and 900. 1.How many such numbers can be formed if digits...

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