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2 years ago

I need help on this question

Mathematics

2 answers:

NISA [10]2 years ago

4 0

The correct answer should be C to this question

Colt1911 [192]2 years ago

4 0

Answer:

A) - M

Step-by-step explanation:

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A study of college business majors included 150 sophomores and 200 juniors. The study showed that 80 sophomores and 150 juniors

vlabodo [156]

Answer:

0.3478

Step-by-step explanation:

Given:-

- The number of sophomore, S = 150

- The sophomore and had summer internship, x = 80

- The number of juniors, J = 200

- The junior and had summer internship, y = 150

Find:-

What is the probability that the person is a sophomore given that the person had a summer internship?

Solution:-

- The total sum of sophomore and junior students is N:

N = S + J

N = 150 + 200

N = 350 students.

- We will denote event A as random selection of sophomore from total.

- We will denote event B as random selection of student who had summer internship.

- We are to determine the conditional probability that a person selected is sophomore given that the person had a summer internship. That is the probability of event A given that event B has already occured.

- The conditional probability can be written as:

P ( A / B ) = P ( A & B ) / P ( B )

Where,

P ( A & B ) : The probability the person is a sophomore and had a summer internship.

P ( B ): The probability that the person selected had a summer internship.

P ( A & B ) = x / N

= 80 / 350

= 0.22857143

P ( B ) = ( x + y ) / N

= ( 80 + 150 ) / 350 = 230/350

= 0.65714286

Therefore the required probability is:

P ( A / B ) = 0.22857143 / 0.65714286

= 0.3478 ... Answer

6 0

3 years ago

Simplify and solve this equation for q: 3q + 5 + 2q – 5 = 65.

gladu [14]

3q+5+2q-5 = 65

5q = 65

q = 13

3 0

3 years ago

How do you solve this math problem-2(x+3y)=18

ss7ja [257]

Greetings!

Solve for <em>x</em>.
$-2(x+3y)=18$
Distribute the Parenthesis. <em>How?</em> Multiply all of the terms inside the parenthesis by the number outside the parenthesis.
$(-2)*x+(-2)*3y=18$
$-2x-6y=18$
Add 6y to both sides.
$(-2x-6y)+6y=(18)+6y$
$-2x=18+6y$
Divide both sides by -2.
$(-2x)/-2=(18+6y)/-2$
The Answer Is:
$x=-9-3y$
$x=-3y-9$

Hope this helps.
-Benjamin

7 0

3 years ago

HELP ASAP!

sladkih [1.3K]

Hey there!!

Let's take the first number as ' x '

Then, the second number would be ' x + 1 '

Sum of these = 183

Hence,

$x + x + 1 = 183$