The required probability of the coin landing tails up at least two times is 15/16.
Given that,
A fair coin is flipped seven times. what is the probability of the coin landing tails up at least two times is to be determined.
<h3>What is probability?</h3>
Probability can be defined as the ratio of favorable outcomes to the total number of events.
Here,
In the given question,
let's approach inverse operation,
The probability of all tails = 1 / 2^7 because there is only one way to flip these coins and get no heads.
The probability of getting 1 head = 7 /2^7
Adding both the probability = 8 / 2^7
Probability of the coin landing tails up at least two times = 1 - 8/2^7
= 1 - 8 / 128
= 120 / 128
= 15 / 16
Thus, the required probability of the coin landing tails up at least two times is 15/16.
Learn more about probability here:
brainly.com/question/14290572
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Answer:
x = 4.5
Step-by-step explanation:
By geometric mean theorem:
Answer:
A because for example, when x (Time in hours) is 5, y (Dollars) is 75. So if you substitute h=15d you get 5=15•75 and 15•75 is clearly not 5, so it is wrong.
Answer:
58240
Step-by-step explanation:
1425 ------ 45600
1820 ------ x
1425*x = 1425x
45600*1820 = 82992000
1425x = 82992000
82992000/1425 = x
58240 = x
https://socratic.org/questions/how-do-you-determine-if-the-equation-y-1-3-0-1-x-represents-exponential-growth-o#416982
Step-by-step explanation:
go to this link maybe it might help you with what youre working with?