Belief in UFOs A survey found that of people believe that they have seen a UFO. Choose a sample of people at random. Find the pr
obability of the following. (a) At least 3 people believe that they have seen a UFO.(b) 2 or 3 people believe that they have seen a UFO.
2 answers:
Answer:
b is the answer am not sure you know
Answer:
a) 3/10
b)3/10
Step-by-step explanation:
let the sample of people be 10
so,
a) total outcome=10
favourable outcome=3
P(seeing a UFO)= 3/10
b) total outcome=10
favourable outcome=2 or 3
P(seeing a UFO)= 2/10+3/10-(2/10
5/10-2/10
=3/10
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Answer:
C. 3
Step-by-step explanation:
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D will represent the number of days he will work out.
134 - 3d < 126
134 - 3(3) < 126
134 - 9 = 125
125 < 126
3 days
Answer:
25
Step-by-step explanation:
1.6 is the answer a,b,c,d is wrong
the answer would be A.
7x × X gives you 7x^2
7x × 2 gives you 14 X
so the answer is the square root of 7x^2 + 14 X
The number is (2√3) / 3
To find the missing number, convert what it says in words to an equation:
Divide both sides by 15:
Take the square root:
