1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Leto [7]
3 years ago
10

Suppose that a high school marching band has 86 members. Of these 86 band members, 26 are seniors, 17 play the trumpet, and 4 ar

e seniors who play the trumpet. What is the probability that a randomly selected band member is a senior given that he or she plays the trumpet
Mathematics
1 answer:
GalinKa [24]3 years ago
8 0

Answer: 0.3023

Step-by-step explanation:

86 band members

26 are senior, 17 plays trumpet. If 4 are seniors and play trumpet, we solve this using the bayes theorem of conditional probability.

Probability of choosing band member that plays trumpet =17/86 = 2/43.

Probability of choosing a senior that plays trumpet = 4/26

Probability that a chosen member is a senior given that he plays trumpet = (2/43)/(4/26)

= 0.3023.

You might be interested in
Jason tossed a fair coin 3 times. What is the probability of getting a head and two tails in any order 1.3/8 2.4/8 3.5/8 4.6/8 p
ladessa [460]

Answer:

1. 3/8

Step-by-step explanation:

Total tossed times = 3

Total Possibilities = 8

Possibilities = (Head, Head, Head), (Tails,Tail,Tails), (Head,Head,Tails), (Head,Tail,Head), (Tails,Head,Head), (Head,Tail,Tail), (Tail,Tail,Head), (Tail,Head,Tail)

Number of options with a head and two tails = 3

So, Probability = Number of correct options ÷ Number of total possibilities

= 3 ÷ 8 or 3/8

4 0
3 years ago
Sipho made a 12.5% when he sold a coat for E437.50 .calculate original cost of the coat​
kaheart [24]

Answer:

E500

Step-by-step explanation:

Given x the original price of the coat

437.5 + 0.125x = x

437.5 = 0.875x

x = E500

8 0
3 years ago
Compute the price of a 3.8 percent coupon bond with 18 years left to maturity and a market interest rate of 7 percent
zzz [600]

The photo below may help you

5 0
3 years ago
What are the two other ways you can write the ratio 3 to 4?
Ghella [55]

Step-by-step explanation:

1. 3:4, 6:8, 9,12

So 12:15 is the same thing as 12/15 you need to simplify so 12 devided by 2 is 4 and 15 divided by 3  is 5 so question to is 4:5

6 0
3 years ago
Read 2 more answers
How to find upper and lower bound of a definite integral given an unknown equation?
worty [1.4K]
Finding the upper and lower bounds for a definite integral without an equation is pretty hard because how can we find the upper and lower bounds of  definite integral if there is no equation given. But I will teach you how to find the lower and upper bounds of a definite integral, when the equation is like this 

\int\limits^6_1 t^{2} - 6t + 11dt 

So, i integrate this, 
( \frac{t^{3} }{3} - 3t^{2} + 11t) \int\limits^6_1

I know I have a minimum at x=3 because;
f(t )= t^2 − 6t + 11
f′(t) = 2
t−6 = 0
2(t−3) = 0
t = 3
f(5) = 4
f(1) = −4
4 0
3 years ago
Other questions:
  • Using the data provided in the tutorial below,which country won the most golden medals in the 1994 Winter Olympics?
    13·1 answer
  • a total of 17,100 seats are available for the next hockey game. If 62% of the tickets have been sold how many seats are in the a
    14·1 answer
  • Which number is the smallest .15 or .5?
    8·1 answer
  • using the foil method multiply (x2-7)(x2-4) then add any like terms and write polynomial in standard form. Show your work. Any b
    14·1 answer
  • * An ant is crawling around this cube. The cube is made of wire. Each side of the cube is 3 inches long. (Those sides are called
    6·1 answer
  • Jean-Paul Sovique, the famous sculptor, is building a solid conical sculpture. He has 1,178.1 cubic feet of clay to work with, a
    9·1 answer
  • 2. Consider the following system of equations.
    9·1 answer
  • A spinner has A-H on it.
    6·1 answer
  • los alumnos de cuarto grado terminaron adornando también el foro de la celebración que mide de 3.5m de largo y 3.10m de ancho ¿c
    7·1 answer
  • How to Split 2 loaves of bread equally between 7 people
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!