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Taya2010 [7]
3 years ago
6

James surveyed people at school and asked whether they bring their lunch to school or buy their lunch at school more often. The

results are shown below.
Bring lunch: 46 males, 254 females
Buy lunch: 176 males, 264 females
The events "male” and "buys lunch” are not independent because
P(buys lunch | male) = P(male) = 0.4.
P(male | buys lunch) = P(male) = 0.3.
P(buys lunch | male) = 0.3 and P(male) = 0.4.
P(male | buys lunch) = 0.4 and P(male) = 0.3.
Mathematics
2 answers:
den301095 [7]3 years ago
6 0

Answer:

D. P(male | buys lunch) = 0.4 and P(male) = 0.3.

Step-by-step explanation:

tamaranim1 [39]3 years ago
3 0
46 + 176 = 222 males
254 + 364 = 518

Which is  total of 740 people.

The probability of being male is 0.3

46 + 254 = 300 that bring lunch
176 + 264 = 440 that buy their lunch 
P(male | buy lunch ) = 0.4

Answer D 
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2 years ago
Is the given value a solution to the equation? 4(n) - 3 = -2(n) + 9 n=2
nlexa [21]

Answer:

Yes!

The solution to the equation is n = 2

Step-by-step explanation:

Given the equation

4\left(n\right)-3=-2\left(n\right)+9

remove the parentheses

4n-3=-2n+9

Add 3 to both sides

4n-3+3=-2n+9+3

Simplify

4n=-2n+12

Add 2n to both sides

4n+2n=-2n+12+2n

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Divide both sides by 6

\frac{6n}{6}=\frac{12}{6}

Simplify

n=2

Therefore, the value of n = 2.

Hence,

Yes!

The solution to the equation is n = 2

5 0
3 years ago
Which phrase describes the algebraic expression 6x?
Allisa [31]

The algebraic expression uses the terms to denote symbols

sum of means addition

difference of means subtraction

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Here we have the term 6x

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5 0
3 years ago
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Step-by-step explanation:

I the answer is 9383792994

8 0
2 years ago
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What is 18 divided by 0.2 and how?
kati45 [8]
0.2 is the same as 2/10

18/(2/10)

As you may have learned in school, when you divide a fraction, you flip the fraction in the denominator, and change it to multiplication

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hope this helps

Remember, when you meet this problem, flip the second fraction, and change the division sign into multiplication. (always second, never first (if first is a fraction)).
5 0
3 years ago
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