All categories

1 year ago

Of the 125 members of the marching band, 42 are in chorus, 78 play

1 answer:

4 0

Using it's concept, it is found that there is a 0.2979 = 29.79% probability that they are in chorus, given that they do not play a sport.

<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

In this problem, 125 - 78 = 47 members of the band do not play a sport, of which 42 - 28 = 14 are in the chorus, hence the probability is given by:

p = 14/47 = 0.2979.

More can be learned about probabilities at brainly.com/question/14398287

#SPJ1

You might be interested in

Solve for x.

denis-greek [22]

Answer:

$\frac{3\±\sqrt{3}}{3}$

Step-by-step explanation:

Whe have the function $3x^2-6x+2=0$

To solve this equation we must factor.

To factor, we need to find the points where the function is equal to zero. So we use the quadratic formula

$\frac{-b\±\sqrt{b^2-4ac}}{2a}$

Where:

a = 3

b = -6

c = 2

Then

$\frac{-(-6) + \sqrt{(-6)^2-4(3)(2)}}{2(3)} = \frac{3+\sqrt{3}}{3}\\\\and\\\\\frac{-(-6) - \sqrt{(-6)^2-4(3)(2)}}{2(3)}= \frac{3-\sqrt{3}}{3}$

finally the correct answer is $\frac{3\±\sqrt{3}}{3}$

5 0

2 years ago

Read 2 more answers

I WILL MARK BRAINIEST IF CORRECT!

Lunna [17]

Answer:

I believe I would be the last one D

8 0

3 years ago

Read 2 more answers

Angle x is an acute angle in a triangle. If cos x=4/5, then the sin x=

Pepsi [2]

The answer is 3/5 because u need to find the missing side in order to find sin

8 0

3 years ago

Read 2 more answers

QUIZ<br> Find the volume of the square pyramid.<br> 9 cm<br> 4 cm

kari74 [83]

Answer:

SEE BELOW

Step-by-step explanation:

V=a²h/3
=9² x 4/3
= 81 x 4/3
= 27 x 4
= 108 cm³

5 0

2 years ago

Chad is getting balloons for his grandmothers birthday party. He wants each balloon string to be 6 feet long. At The party store

finlep [7]

Answer: 258 yards

Step-by-step explanation:

Since Chad wants each balloon string to be 6 feet long, and Chad wants to get 43 balloons, the number of yards of string that he will need will be calculated by multiplying 43 by 6. This will be:

= 43 × 6

= 258 yards of string

8 0

2 years ago