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Author Archives: Anonymous

You must show all work on your paper to receive any credit f…

You must show all work on your paper to receive any credit for this problem!    Box 1 contains 2 black balls and 3 white balls. Box 2 contains 3 black balls and 4 white balls. A ball is drawn at random from Box 1, the color is recorded and the ball is then placed in Box 2.  Then a ball is drawn at random from Box 2 and the color recorded.   a.  Draw a complete tree diagram of this experiment.  Include probabilities along branch lines. b.  List all possible outcomes of the recordings of the colors of both balls ALONG WITH their probabilities.

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The standard configuration for an Alaska license plate is 3…

The standard configuration for an Alaska license plate is 3 letters followed by 4 digits. How many different  license plates are possible if letters can be repeated, but digits cannot be repeated? 

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The standard configuration for an Alaska license plate is 4…

The standard configuration for an Alaska license plate is 4 letters followed by 3 digits. How many different  license plates are possible if letters cannot be repeated, but digits can be repeated? 

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 Examine the spinner to the right. a.  Is this spinner equal…

 Examine the spinner to the right. a.  Is this spinner equally likely?  Answer yes or no.   [a]  Answer as a fraction in lowest terms. b.  What is the probability of landing on red in a single spin? [b]  Answer as a fraction in lowest terms. c.  What is the probability of landing on blue or purple in a single spin? [c]  Answer as a fraction in lowest terms. d.  If you land on green on the first spin, what is the probability of landing on green on the next spin? [d]  Answer as a fraction in lowest terms.

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You must show all work on your paper to receive any credit f…

You must show all work on your paper to receive any credit for this problem!    Box 1 contains 2 black balls and 4 white balls. Box 2 contains 2 black balls and 1 white ball. A ball is drawn at random from Box 1, the color is recorded and the ball is then placed in Box 2.  Then a ball is drawn at random from Box 2 and the color recorded.   a.  Draw a complete tree diagram of this experiment.  Include probabilities along branch lines. b.  List all possible outcomes of the recordings of the colors of both balls ALONG WITH their probabilities.

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How many ways can we award a Gold, Silver and Bronze medals…

How many ways can we award a Gold, Silver and Bronze medals to the 18 athletes competing in the Archery event at the Olympics in China?

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If 15 runners are in a race, how many possible ways are ther…

If 15 runners are in a race, how many possible ways are there to award 1st, 2nd, and 3rd place trophies?

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A bin contains six marbles:  1 Red, 2 Blue and 3 Green.  Two…

A bin contains six marbles:  1 Red, 2 Blue and 3 Green.  Two marbles are randomly selected without replacement.  Examine the tree diagram and answer the following questions. a.  What is the probability both marbles are blue? [a]  Answer as a fraction in lowest terms. b.  What is the probability that the second marble chosen is red? [b]  Answer as a fraction in lowest terms. c.  What is the probability that both marbles are the same color? [c]  Answer as a fraction in lowest terms. d.  If the first marble chosen is green, what is the probability that the second marble chosen will be green? [d]  Answer as a fraction in lowest terms. e.  What is the probability of choosing at least 1 blue marble? [e]  Answer as a fraction in lowest terms.  

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Suppose 4 ​quarters, 6 ​dimes, 7 ​nickels, and 4 pennies are…

Suppose 4 ​quarters, 6 ​dimes, 7 ​nickels, and 4 pennies are in a box. One coin is selected at random. What is the expected value of the money drawn from the​ box? HINT:  Use 25 to represent a quarter (not 0.25).  Do the same for the other coins. [A]  ¢  Round to the nearest tenth of a cent

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How many ways can you rearrange the letters in the word?   E…

How many ways can you rearrange the letters in the word?   E X C E L L E N T

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