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olganol [36]
3 years ago
12

I dont get this one someone help me

Mathematics
1 answer:
worty [1.4K]3 years ago
5 0
You have to set up a ratio and solve
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Marion flipped a coin three times. What is the probability that exactly two heads appeared?
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Probability of getting heads: 1/2 

Probability to get 2 heads out of three tries is: 1/8
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The correct is the second choice
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3) If it takes 3/29 of the coal for the train to go 1 mile, how much of the coal would it take to go 6.3 miles?
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Answer:

18.9/29 or 65.17% of the coal.

Step-by-step explanation:

3/29 x 6.3 = 18.9/29

18.9/29 = 0.6517 x 100 = 65.17

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The marksobtained by a group of students in science test are 90, 49, 87, 74,80, 85, 49
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Answer:

1. Median refers to the central value of a collection of data

Therefore it is 73.4

2. Mode refers to the frequency of a value in a collection of data

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3. Range refers to The greatest number subtracted from the smallest number

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