Answer:
16
Step-by-step explanation:
4 coins 2 out comes each
2 X 2 X 2 X 2 = 16
2^4 = 16
Hope i helped you
Answer: 45.4% of students like both building snowmen and skiing
18.1% of students who do not like building snowmen also do not like skiing
Step-by-step explanation:
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likes snowmen doesn't like snowmen total
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likes skiing 50 30 80
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doesn't like skiing 10 20 30
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total 60 50 110
Answer:
Probability of atleast one of 12 student has food allergies ≈ 0.58 ( approx)
Step-by-step explanation:
Given: Probability of a children under age 5 has food allergies = 7%
=
To find : Probability of atleast one of 12 student has food allergies
Probability of a chindren under age 5 does not have food allergies =
⇒ prob =
now we find Probability of atleast one of 12 student has food allergies this means we have to find prob of 1 student, 2 student, 3 student, till 12 student have allergy out of 12 student of class then add all prob.
But instead of finding all these probability we find probability of student having no allergy.i.e., 0 student then subtract it from 1(total probability)
Probability of 0 student having allergy out of 12 student =
Therefore, Probability of atleast one of 12 student has food allergies
=
=
≈ 0.58 ( approx)
Answer:
30
Step-by-step explanation:
1. x + 40 = 3x - 20
2. 40 = 2x - 20
3. 60 = 2x
4. 30 = x