4. About 30% of the U.S. population is under 20 years old. About 17% of the population is over 60. Which of the following is the probability that a person chosen at random is under 20 or over 60?

a. 17%
b. 53%
c. 47%
d. 30%

Question

4. About 30% of the U.S. population is under 20 years old. About 17% of the population is over 60. Which of the following is the probability that a person chosen at random is under 20 or over 60?

a. 17%
b. 53%
c. 47%
d. 30%

faiqraees · Answer

P(under 20 or over 60) =P(under 20)+P(over 60)

gingerem · Answer

So it would be a?

faiqraees · Answer

No

gingerem · Answer

Hmm

faiqraees · Answer

What's the value of P(under 20)?
What's the value of P(over 60)?
Whats the value of P(under 20)+P( over 60)?

gingerem · Answer

I'm sorry ':D I don't understand

faiqraees · Answer

What's the value of Probability of under 20?
What's the value of Probability of over 60?
Whats the value of Probability of under 20+Probability of over 60?

gingerem · Answer

Are you talking about fractions?

faiqraees · Answer

4. About ` 30% of the U.S. population is under 20 years old`. About `17% of the population is over 60`. Which of the following is the probability that a person chosen at random is under 20 or over 60?

faiqraees · Answer

so 30 percent is the probability of population being under 20 year old

gingerem · Answer

Ok

faiqraees · Answer

What's the value of Probability of under 20?
What's the value of Probability of over 60?
Whats the value of Probability of under 20+Probability of over 60?

gingerem · Answer

47%

faiqraees · Answer

correct