Question

two real numbers are selected independently at random from the interval [−20,10]. what is the probability that the product of those numbers is greater than zero? (source: amc)

Answer 1

The probability of the product being greater than zero is 32.26%.

Probability is the parameter that describes how likely an event is to occur. It can be determined as

P = x / n

where P is the probability, x is the number of events and n is the total number.

From the question we know that :

population = -20 to 10

the total number is 31

n = 31

Hence the total number which greater than zero is 1 to 10

x = 10

By using the probability formula, we get

P = x / n

P = 10 / 31

P = 0.3226

by percentage

P = 0.3226 x 100%

P = 32.26%

Find more on probability at: brainly.com/question/24756209

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