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ExtremeBDS [4]
3 years ago
11

You randomly select 500 students and observe that 85 of them smoke. What is your estimate of the probability that a randomly sel

ected student smokes?
Mathematics
1 answer:
kicyunya [14]3 years ago
6 0

Answer:

17% probability that a randomly selected student smokes.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

What is your estimate of the probability that a randomly selected student smokes?

This estiamte is the number of smoking students divided by the total number of students.

We have that:

There are 500 students.

85 smoke

So there is an 85/500 = 0.17 = 17% probability that a randomly selected student smokes.

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Brianna and let kelci are raising money for a class field trip. Brianna has raised 3 times more money than kelci, but together t
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7 0
3 years ago
In a city the distance between the libary and the police station is 3 miles less than than the distance between the police stati
Mademuasel [1]

Answer:

8 miles

Step-by-step explanation:

Given

<em>Represent the police station with P, Library with L; Fire station with F</em>

<em>The first statement can be represented as:</em>

<em></em>L - P = P - F - 3

<em>The second can be represented as:</em>

L - P = 5

Required

Determine the distance between the police station and the fire station (P - F)

L - P = P - F - 3 --- (1)

L - P = 5 --- (2)

Substitute 5 for L - P in (1)

5 = P - F - 3

Add 3 to both sides

3 +5 = P - F - 3 + 3

3 +5 = P - F

8= P - F

P - F = 8

5 0
3 years ago
20 points
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If 2x = 3y + 11 and 2 to the power of x = 2 to the power of 4(y+1), determine the value of x + y
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Z = -2

Y = 5

is your answer

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2 years ago
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