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Masja [62]
3 years ago
10

The Table below is a data set that lists how many pairs of shoes are owned by some of your classmates.

Mathematics
1 answer:
Pani-rosa [81]3 years ago
8 0

Answer:

7.5

Step-by-step explanation:

<u>To find the median, first order the numbers from least to greatest:</u>

2, 4, 5, 7, 8, 8, 10, 12

<u>Then, find the middle number (number in the middle):</u>

There are 2 middle numbers. 7 and 8.

Because there are 2 numbers, we need to find the average. If there was only one number, that would be the median.

<u>To find the average, add 7 and 8. Then, divide the sum by 2 because there are 2 numbers;</u>

7 + 8 = 15

15 / 2 = 7.5

Have a nice day!

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Answer:

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Probability that the car encounters a green light on the first day: 50 \% = 0.5.

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To meet the condition on the fifth day, there needs to be a yellow light. The probability that the condition is met on the first four days and on the fifth day will be (0.5 \times 0.5 \times 0.5 \times 0.5) \times 0.1 = 0.5^{4} \times 0.1.

To meet the condition on the sixth day, all prior days should meet the conditions. Besides, there needs to be a red light on the sixth day. (0.5^{4} \times 0.1) \times 0.4

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The question asks that the condition be met on all ten days. As a result, the probability of meeting the condition will be equal to the probability on the tenth day: 0.5^{4} \times 0.1 \times 0.4^{5} = 6.4\times 10^{-5} = 0.000064 = 0.0064\%.

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