Let us determine the number of distinct codes formed.Originally Posted bycrazy_gal108

You first have 3 numbers then 3 letters which is,

Apparently there were too many cars, by adding a forth letter gives,

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- May 4th 2006, 01:01 PM #1

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## Please Help!

These questions are from a grade 12, Data Management class. Any help would be great. I am completely stuck. Simple terminolgy in explaining would be useful The first two are more about being able to explain reasoning in words while the last two will involve calculations. Thanks to everyone.

**1.**Until 1997, most licence plates for passenger cars in Ontario had three numbers followed by three letters. Explain why the goverment began to increase the number of letters to four.

**2.**A hockey team consists of 17 players (9 forwards, 6 defensemen and 2 goalies). The starting line-up consists of 3 forwards, 2 defensemen and 1 goalie. Explain way the number of ways the players can be selected only is less than if they are selected to specific positions.

**3.**Six students are asked to secretly choose a number from 1 to 15. Determine the probability that at least two students choose the same number to the nearest thousandth.

4. A pizzeria offers 10 different toppings. A group of people plan to order six pizzas, with up to three toppings on each. They decide to order each topping exactly once and to have at least on topping on each pizza. Determine the different cases possible when distributing the toppings in this way and the number of ways that each can be done.

- May 4th 2006, 01:21 PM #2

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- May 4th 2006, 01:39 PM #3

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Originally Posted by**crazy_gal108**

Code:1.000 1.001 1.002 ........ 14.998 14.999 15.000

There are a total of 14,001 numbers.

STUDENT1)Can chose any one thus probability is 1.

STUDENT2)Can chose any number except that of student1, thus the probability is

STUDENT3)Can chose any number except that of student1 and student2 thus the probability is

STUDENT4)Probability is

STUDENT5)Probability is

STUDENT6)Probability is

Thus, the probability that they DO is,

Evaluating we find that,

0.0010709185167321222566663866769298

Is the probability thus,

a little more than 1%