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Vinvika [58]
3 years ago
5

Probability of someone either owning a dog or being male.​

Mathematics
1 answer:
andrey2020 [161]3 years ago
6 0

Answer:

c. 60.278%

Step-by-step explanation:

There is a 27.778% probability that someone owns a dog.

There is a 45% probability that someone is a male.

However, these two are not mutually exclusive.  12.5% both own a dog and are male.  If we simply add 27.778% and 45%, we'll be double counting the overlap.  To avoid this, we subtract 12.5%.

27.778% + 45% − 12.5% = 60.278%

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The population in 2020 will be 57657.5 approximately

<u>Explanation:</u>

Given:

Population in 2014, P = 62,500

Rate of decrease, r = 1.6%

Population in 2020, Q = ?

Number of years between 2014 to 2020 = 5 years

Population in 2020 = P(1 - \frac{r}{100} )^t

Substituting the value we get:

Q = 62500(1- \frac{1.6}{100})^5\\ \\Q = 62500 ( 0.92252) \\\\Q = 57657.46

Therefore, the population in 2020 will be 57657.5 approximately

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2 years ago
The sum of 7 and the cube of a number
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Step-by-step explanation:

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Evaluate: 32 + (8 − 2) • 4 − 6/3
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