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jenyasd209 [6]
3 years ago
10

A fair coin is flipped 10 times and the results are observed. The coin lands heads-side up 4 times.

Mathematics
2 answers:
Vedmedyk [2.9K]3 years ago
5 0

Answer:

The experimental probability of the coin landing tails-side up is <u>60</u><u>%</u><u>.</u>

Step-by-step explanation:

The probability of it landing heads up is 4/10. You can use 4/10 to find how many times it landed on tails.

10/10 - 4/10= 6/10 now convert 6/10 into a percentage, 60/100=<u>60%</u>

stich3 [128]3 years ago
4 0

Answer:  0.6

Step-by-step explanation:

Given : the total number of times a fair coin flipped = 10

The total number faces on a fair coin (Tail/head)=2

Since, the number of times coin lands heads-side up=4

Then , the number of times coin lands on tails = 10-4=6

Now, the experimental probability of the coin landing tails-side up will be :-

\text{P(Tail)}=\dfrac{\text{Number of times coin lands on tails}}{\text{Total number of times coin flipped}}\\\\=\dfrac{6}{10}=0.6

Hence, the experimental probability of the coin landing tails-side up = 0.6

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Seven pieces of rope have an average (arithmetic mean) length of 68 centimeters and a median length of 84 centimeters. If the le
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Answer:

The maximum possible length, in centimeters, of the longest piece of rope is 134 cm

Step-by-step explanation:

Let the seven pieces be a,b,c,d,e,f,g

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Average = \frac{\text{Sum of all lengths}}{\text{No. of pieces}}

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68 \times 7 =\text{a+b+c+d+e+f+g}

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We are given that the median length of a piece of rope is 84 centimeters.

We arrange the pieces in the ascending order

So, median will be the length of 4th piece

So, d = 84 cm

the length of piece a,b,c will be less than 84 and the value of e,f,g must be greater than or equal to 84

Let us suppose the length of a,b,c be x

Let us suppose the length of e,f be 84

The length of the longest piece of rope is 14 centimeters more than 4 times the length of the shortest piece of rope

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476=7x+266

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g = 4x+14=4(30)+14=134

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10 people can paint a building in 5 days. if each person painted as quickly as the others then how much of the building could 7
Paul [167]
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