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
GREYUIT [131]
3 years ago
9

An event is three times as likely as its complement. What is the probability of the event?

Mathematics
1 answer:
serg [7]3 years ago
5 0
E = some event
C = complement of event E
Since the events are complementary, this means P(E)+P(C) = 1

We know that P(E) = 3*P(C) since "an event is three times as likely as its complement"

So we can replace P(E) with 3*P(C) and then isolate P(C)
P(E) + P(C) = 1
3*P(C) + P(C) = 1
4*P(C) = 1
P(C) = 1/4

The probability of the complementary event is 1/4
So the probability of the original event is 3/4 (three times 1/4)

Answer: 3/4

note: in decimal form, 3/4 = 0.75
You might be interested in
Suppose an apple picker in China earns an average wage of 45 cents per hour. An apple picker can harvest about 2.0 bushels of ap
Eduardwww [97]

Answer:

0.0398 dollars

Step-by-step explanation:

We are told in the question that

An apple picker in China earns an average wage of 45 cents per hour.

Mathematically

1 hour= 45 cents............ Equation 1

An apple picker can harvest about 2.0 bushels of apples each hour.

Mathematically

2.0 bushels = 1 hour ..............Equation 2

We are told that each bushel contains about 126 apples

1 bushel = 126 apples

2 bushels =

126 × 2

= 252 apples

Combining Equation 1 and 2 together,

We can say

An apple picker in 1 hour harvests 2 bushels of apples which is 252 apples and is paid 45 cents

1 hour = 2 bushels of apples

1 hour = 252 apples

1 hour = 45 cents

Hence we can say fro harvesting 252 apples, an apples picker is paid 45 cents

Mathematically,

252 apples = 45 cents

One gallon of apple juice requires 40 apples

We are to calculate the labor cost of one gallon of apple juice in dollars

If : 252 apples = 45 cents

40 apples = X cents

Cross Multiply

40 × 25 = 252 × X

X = (40× 25) ÷ 252

X = 3.984063745 cents

Hence the labor cost of 40 apples = 3.984063745 cents

Approximately = 3.98 cents

Converting 3.98 cents to dollars

100 cents = 1 dollar

3.98 cents =

= 3.98/100

= 0.0398 dollars.

Therefore, the labor cost of one gallon of apple juice in dollars is 0.0398 dollars.

8 0
3 years ago
How much would $100 invested at 8% interest compounded monthly be worth after 6 years? Round your answer to the nearest cent. Do
Neko [114]
<span><span>FV = $100*(e^rt)
FV = $100*e^(0.08*6)
FV = $100*e^0.48
FV = $100*1.616
FV = $161.6</span><span>
</span></span>
4 0
3 years ago
8. A paper bag contains one pink crayon, four yellow crayons, three black crayons and two red crayons. What is the probability o
vivado [14]

Answer:

C 1/2

Add all the crayons together and then see how many red and black crayons there are. which in this case it's half. That is the probability

8 0
3 years ago
I already know the answer but need help getting the remainder for 89,736 divided by 40
Pepsi [2]

Answer:

when you divide

89736÷40 the answer is 221 with the remainder 16.

6 0
3 years ago
Gabriela walked to school on 16 of the 24 school days in March. Which value is equivalent to the
maks197457 [2]

Answer:

.

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • How does water pressure affect a scuba diver ?
    7·2 answers
  • A string quartet finds that when they play for donations they earn between $25 and $40 per hour. If they play for 3 hours and di
    5·1 answer
  • Are there any lines that cannot be written in standard form? If so which ones?
    14·1 answer
  • Based on the formula that you developed in question 3, what is the area of the circle? How do you know your answer is correct? E
    13·1 answer
  • Identify the domain of a radical function with an odd index.
    11·1 answer
  • PLEASE HELP QUICK 10 POINTS AND I GIVE BRAINLEIST!!! what is the <br> GCF of 110 and 132
    5·1 answer
  • The slope is -3/2, the y intercept is 1. Write an equation for the linear function, f(x)
    7·1 answer
  • SOMEONE HELP PLEASE NEED ANSWER ASAP!!!
    14·1 answer
  • Please give me answer to write your copy and send the answer......​
    8·1 answer
  • Find the distance between (5, -1) and<br> (-3,0).<br> Give your answer correct to 1 decimal
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!