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
Pavel [41]
3 years ago
10

ILL MARK AS BRAINLESS PLS HELP HURRY

Mathematics
2 answers:
BartSMP [9]3 years ago
8 0

Answer: the first one is 4/3. The second one is 8/20. The third one is 8/8. The fourth one is 7/13!

Step-by-step explanation:

MAXImum [283]3 years ago
3 0

Answer:

First one is 4/3. The second one is 8/20. The third one is 8/8. The fourth one is 7/13!!! :)))

Step-by-step explanation:

You might be interested in
The sample space of a random experiment is {a, b, c, d, e} with probabilities 0.1, 0.1, 0.2, 0.4, and 0.2 respectively. Let A de
antoniya [11.8K]

Answer:

a) P(A) =P(a)+P(b) +P(c)= 0.1+0.1+0.2 = 0.4

b) P(B) =P(c) +P(d)+P(e)=0.2+0.4+0.2=0.8

c) P(A') = 1-P(A) =1-0.4=0.6

d) P(A \cup B) =0.4 +0.8-0.2 =1.0

e)  The intersection between the set A and B is the element c so then we have this:

P(A \cap B) = P(c) =0.2

Step-by-step explanation:

We have the following space provided:

S= [a,b,c,d,e]

With the following probabilities:

P(a) =0.1, P(b)=0.1, P(c) =0.2, P(d)=0.4, P(e)=0.2

And we define the following events:

A= [a,b,c], B=[c,d,e]

For this case we can find the individual probabilities for A and B like this:

P(A) = 0.1+0.1+0.2 = 0.4

P(B) =0.2+0.4+0.2=0.8

Determine:

a. P(A)

P(A) =P(a)+P(b) +P(c)= 0.1+0.1+0.2 = 0.4

b. P(B)

P(B) =P(c) +P(d)+P(e)=0.2+0.4+0.2=0.8

c. P(A’)

From definition of complement we have this:

P(A') = 1-P(A) =1-0.4=0.6

d. P(AUB)

Using the total law of probability we got:

P(A \cup B) =P(A) +P(B)-P(A \cap B)

For this case P(A \cap B) = P(c) =0.2, so if we replace we got:

P(A \cup B) =0.4 +0.8-0.2 =1.0

e. P(AnB)

The intersection between the set A and B is the element c so then we have this:

P(A \cap B) = P(c) =0.2

8 0
3 years ago
WILL GIVE BRAINLIEST!!!!!
Phoenix [80]
It’s either A or B but I would choose B as the correct answer
3 0
2 years ago
What is the volume of a cone that has a radius of 12 m and a height of 3 m?
kakasveta [241]
Idk I'm learning that also
3 0
3 years ago
7 liters of gasoline between their 4 cars. How many liters of gasoline should each car get?
NISA [10]

Answer:

1.75 liters for each car.

Step-by-step explanation:

Divide:

*7 / 4 = 1.75.

Check:

*1.75 x 4 = 7.

4 0
3 years ago
Read 2 more answers
In a survey, of the voters support a particular referendum. If 40 voters are chosen at random, find the mean and variance for th
Katyanochek1 [597]

This question is incomplete, the complete question is;

In a survey, 55% of the voters support a particular referendum. If 40 voters are chosen at random,

find the mean and variance for the number of voters who support the referendum.

Answer:

a) The Mean is 22

b) Variance is 9.9

Step-by-step explanation:

Given that;

55% of the voters support a particular referendum p = 0.55

q = 1 - p = 1 - 0.55 = 0.45

sample size n = 40

a)

Mean = sample size n × p

Mean = 40 × 0.55

Mean = 22

Therefore the Mean is 22

b)

Variance = n × p × q

so we substitute

Variance = 40 × 0.55 × 0.45

Variance = 9.9

Therefore the Variance is 9.9

3 0
3 years ago
Other questions:
  • F(x)= -x2 + 1 for x =-3
    6·1 answer
  • A teacher pays $39 for 10 books.What is the unit price of each book?
    7·2 answers
  • Find the distance between X (5, 7) and Y (-6, 6).<br> Round answer to the nearest tenth.
    9·1 answer
  • For the years between 2003 and 2010, the equation yˆ=937.98x+12,764.90 models the average cost of tuition of four-year colleges,
    15·1 answer
  • 1. A manufacturer of a printer determines that the mean number of days before a cartridge runs out of ink is 75 days, with a sta
    14·1 answer
  • Marta brought new fish for her home aquarium. She brought 3 guppies and 2 platies for a total of $13.95. Hank also brought guppi
    14·2 answers
  • If (x + k) is a factor of f(x), which of the following must be true?
    15·2 answers
  • Maria buys 8 1/3 pounds of beef to make tacos for a party. She uses 5/9 pound of beef for each taco. How many tacos can Maria ma
    6·2 answers
  • HELP I NEED HELP FINDING THE AREA!!!!!!!!!!!!!!!!<br> (brainlyest)
    9·1 answer
  • Fill in the blank to complete the calculation using the distributive property.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!