. Two cards are drawn in succession from a pack of 52 cards. Find the chance that the first is a king and second a queen if the first card is (i) replaced, (ii) not replaced.

. Two cards are drawn in succession from a pack of 52 cards. Find the chance that the first is a king and second a queen if the first card is (i) replaced, (ii) not replaced.

There are 5 hospitals. A study about the success of a new treatment is being done at all the five hospitals. So total there are 5 studies going on. For each study there is a 0.05 or 5% chance that...

Find the probability with the percentage given

Bill has completed a 10-question multiplechoice test on which he answered 7 questions correctly. Each question had one correct answer to be chosen from five alternatives. Bill says that he...

probability

In a random sample of 50 high school seniors, 9 had their own cars. In a sample of 75 university freshman, 20 had their own cars. At = .06 level of significance, test the claim that the proportion...

Event A has a 15% chance of happening. Event B has a 30% chance of happening. In this case, If A happens, then B happens, if A doesn't happen B doesn't happen.

a.) If one pregnancy is selected at random, what is the probability it will last more than 275 days? b.) What percentage of pregnancies last between 270 and 280 days? c...

An urn contains 5 red and 8 violet marbles. One marble is drawn from the urn and it will be replaced by two marbles of the other colour. Then a second marble is drawn.

The probability of the student solving Q1 is 60% . If he solves it the probability of him passing the exam is 80% , if he doesn’t then the probability of failing is 55%.After the exam the student...

Of the 193 member countries of the United Nations, 54 are in the African Group and 23 are in the Eastern European Group. Suppose that a country is selected at random from the members of the United...

A jury has 12 jurors. A vote of at least 10 of 12 for "guilty" is necessary for a defendant to be convicted of a crime. Assume that each juror acts independently of the others and that the...

Suppose there are three pitchers and three catchers at a baseball training camp. In how many ways can the six players be seated in a row if no one sits next to someone who plays the same position...

20% green 25% yellow 15% other 40% red how is the answer 100

Suppose you are in a room with 7 people. What is the probability that no one shares a birthday?

A box contains 6 red marbles and 8 blue marbles. If you randomly grab 5 marbles at a time, find the probability that there will be (i) 3 red. (ii) 4 red. (iii) all red. (iv) none red (v) none...

Number sold (100’s) 1 - (0.05) 2- (0.1) 3 - (0.2) 4 - (0.05) 5-(0.25) 6-(0.1) 7-(0.05) 8-(0.05) 9-(0.05) 10 -(0.1) the number in brackets are the probability.

Tommy is a football player who suffers an injury during the game. The team doctor looks at the injury and tells Tommy that he needs to run some tests and there is only a 20% chance he will recommend...

5. The random variables X, Y have joint probability density function f(x, y) = ( C e −x−e −x−2y e y−1 if x > 0 and y > 0, 0 otherwise. (a) What is the...

2. You have two dice, one with three sides labeled 0, 1, 2 and one with 4 sides, labeled 0, 1, 2, 3. Let X1 be the outcome of rolling the first die, and X2 the outcome of rolling the second...

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