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goldfiish [28.3K]
3 years ago
11

PLEASE HELPP IM TIMED I'LL DIE I'LL GIVE BRAINLIEST AND 15 POINTSSS

Mathematics
1 answer:
seropon [69]3 years ago
4 0

Answer:

Step-by-step explanation:

Its in right form. It cant be reduced. I think. If wrong sorry.

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A health study tracked a group of person for five years. At the beginning of the study, 20% were classified as heavy smokers, 30
Aleks04 [339]

Answer: 0.421

Step-by-step explanation:

Heavy smoker = 20%

Light smoker = 30%

Non smokers = 50%

We can assume that the probability that a non-smoker is going to die in the next 5 years be y.

Since light smokers were twice as likely as nonsmokers to die during the five-year study, the probability will be:

= 2 × y = 2y

Probability for the Heavy smokers will be:= 2 × 2y = 4y

The expected number of people that will die for each in the next 5 years will be:

Non smoker:

= 50% × y

= 0.5 × y

= 0.5y

Light smoker:

= 30% × 2y

= 0.3 × 2y.

= 0.6y

Heavy smoker:

= 20% × 4y.

= 0.2 × 4y

= 0.8y

Total = 0.5y + 0.6y + 0.8y = 1.9y

The probability that the participant was a heavy smoker will be:

= 0.8y/1.9y

= 0.421

3 0
3 years ago
^^ question above! Thanks!
Aleksandr [31]
You can cross multiply and the answer would be 100/9
9/10=10/k
100=9k
k=100/9
7 0
3 years ago
I need help with this question​
Temka [501]

Answer:

It would be b I think

Step-by-step explanation:

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3 years ago
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elena-s [515]

Answer:

ya 5x is the right anwser

3 0
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Jessica can walk 1.5 kilometers in 30 minutes. How long will it take her to walk 2.5 kilometers?
RUDIKE [14]

Answer:

It should be 20minutes at a easy pace

Step-by-step explanation:

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2 years ago
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