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zlopas [31]
3 years ago
11

Calculate the probability of needing at least 5 tosses of an unbiased coin to land a head.

Mathematics
1 answer:
Gnom [1K]3 years ago
4 0

Answer:

0.03125

Step-by-step explanation:

If we have a fair coin the probability of landing a head is 50%.

We can think the question as what is the probability of landing four tails and then a head. That is we needed at least 5 tries to get a head.

Prob \{ T,T,T,T,H\}

Since this events are independent we can write it as

Prob \{ T\} \times Prob \{ T\} \times Prob \{ T\} \times Prob \{ T\} \times Prob \{ H\} =.5^5= 0.03125

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VikaD [51]

Answer:

Step-by-step explanation:

Equivalent fractions for 1/4

From this chart, we can observe that the equivalent fractions of 1/4 are: 2/8, 3/12, 4/16,... Two fractions are said to be equivalent if their values (decimal/graphical) are the same. We usually multiply the numerator and denominator of a fraction by the same number to get its equivalent fraction.

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3 years ago
FP!!!!!!!!!!!!!!!!!!! if ur up<br><br> ( 10 x 8 ) + 150
taurus [48]

Answer:

220

Step-by-step explanation:

<u>first we have by Bracket of BODMAS rule then we have to multiply 10 *8 = 80</u>

<u>first we have by Bracket of BODMAS rule then we have to multiply 10 *8 = 80then we have to open bracket 80 +150</u>

<u>first we have by Bracket of BODMAS rule then we have to multiply 10 *8 = 80then we have to open bracket 80 +150 = 220</u>

<u> (10*8) +15</u>

<u>Solution</u>

<u>Solution= (80) +150</u>

<u>Solution= (80) +150= 80+150</u>

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<u>Solution= (80) +150= 80+150=. 220 </u>

8 0
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Answer:

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Step-by-step explanation:

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Explanation:
Understand the situation:

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When she ran the REST of the stairs, it meant she ran the other 3/4 of stairs because:
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LETS CHECK IF 9 IS REALLY 3/4 of 12:
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HOPE THIS HELPS
-SpaceMarsh
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