Originally Posted by

**kurdupel** Need help with this problem. Thanks.

**Problem 1:**

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4 numbers on the spinner are equally likely. They are also all different.

Mr F says: What does this tell you about the size of the four sections.

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Smallest sum you can get in two spins of this spinner is 2; Mr F says: What number does that tell you is on the spinner ....? (Hint: If you get it twice the sum is 2 .....)

largest is 14. Mr F says: What number does that tell you is on the spinner ....? (Hint: If you get it twice the sum is 14 .....)

So now you know two of the numbers.

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impossible to get odd number if you spin this spinner two times and add results.

Mr F says: This should tell you that the remaining two numbers are odd.

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If you spin this spinner twice, and add the two numbers, you are likely to get 10

Mr F says: What number does this tell you is on the spinner given the two numbers you so far know are on the spinner?

as 6.

Mr F says: What number does this tell you is on the spinner given the two numbers you so far know are on the spinner?

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impossible to get an even number on this spinner if you spin three times and add.

Mr F says: Confirm this statement with the four numbers you now have.

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most likely sum of two spins of this spinner is eight.

Mr F says: Confirm this statement with the four numbers you now have.

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DRAW SPINNER.

**Problem 2:**

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spinner has 3 sections. While no 2 are the same size, one of the sections is half the size of another.

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You are more likely to get 2/3 than one if you sum two spins, but 5/6 is the most likely sum of all.

Mr F says: Possible totals for two spins are 2/3, 1 and 5/6. Given one of the numbers that you know is on the spinner (see below), what does this tell you the other two numbers must be?

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largest number you get in 2 spins of this spinner is one.

Mr F says: What number does that tell you is on the spinner ....? (Hint: If you get it twice the sum is 1 .....)

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If you spin the spinner twice and add, you get a sum of one about a quarter of the time.

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sum of 3 numbers on the spinner is one.

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If you spun the spinner 100 times and added up all the numbers, you'd probably get somewhere near 40.

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DRAW SPINNER.