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3 years ago

6

What is diameter d in meters if the distance around the track is 400 meters round your answer to the nearest tenth

1 answer:

Karo-lina-s [1.5K]3 years ago

7 0

The answer is 768 minutes away from the park I got it coming

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Step-by-step explanation:

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A chef cooked 4 kilograms of mashed potatoes for a dinner party. If the guests only ate

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4 years ago

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You flip a coin 100 times in the air and find that it lands on heads 65 times. Determine the theoretical and experimental probab

scoundrel [369]

Answer:

The experimental probability --> $\frac{13}{20}$

The theoretical probability --> $\frac{1}{2}$

Step-by-step explanation:

<u>Key skills needed: Experimental vs theoretical probability, Fractions</u>

1) The first thing you need to understand is experimental probability vs theoretical probability. (Do not include this in your work!!)

- Theoretical probability is based on simple reasoning

- Experimental probability is based on the results a person gets (so the experiment you did by flipping the coin)

2) Now with this, let's start solving:

Experimental probability ---> $\frac{heads}{total}$ --> You flipped the coin a total of 100 times, so the denominator would be 100. 65 of those would be heads so 65 is our numerator.
So our experimental probability is --> $\frac{65}{100}$ --> Both have the factor of 5, so take the factor of 5 out of the numerator and denominator and you will get --> $\frac{13}{20}$
Now onto theoretical probability --> $\frac{heads}{total}$ --> There are 2 faces of a coin, 1 side is heads, and 1 side is tails --> The total number of faces is 2, so 2 is our denominator. There is only 1 side that is heads, so 1 is the numerator. This means --> Our theoretical probability is $\frac{1}{2}$

<em>Hope you understood and have a nice day!! :D</em>

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