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ad-work [718]
3 years ago
8

Which statements explain that the table does not represent a probability distribution? Select each correct answer.

Mathematics
2 answers:
dlinn [17]3 years ago
8 0

Answer:

Option A and D

Step-by-step explanation:

Given : Result       Probability

              1/6                 1/4

              1/5                 1/3

              1/4                 3/4

               1/3                4/3

To find : Which statements explain that the table does not represent a probability distribution?

Solution :

A) The probability 4/3 is greater than 1.

This statement does not represent a probability distribution.

As probability lies between 0 and 1. It is not greater than 1.

D) The sum of the probabilities is 8/3.

This statement does not represent a probability distribution.

As sum of probability is always 1.

Therefore, Option A and D are correct.

12345 [234]3 years ago
3 0

Answer:

Step-by-step explanation:

The Selected Correct answers were

A. The probability 4/3 is greater than 1.

 

D. The sum of the probabilities is 8/3.

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Isolate the variable x.
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4 0
3 years ago
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Kate wants to build a fence around her yard. The width of the yard is one-third the length. The perimeter of the yard is 80 feet
bezimeni [28]
The length would be 30 feet, and the width would be 10 feet.
4 0
3 years ago
Iodine-131, a radioactive substance that is effective in locating brain​ tumors, has a​ half-life of only 8 days. A hospital pur
Aloiza [94]

The mass of substance left after 7 days is 13.09 g

The mass of substance left, N is given by

N = N₀exp(-λt) where λ = decay constant and N₀ = initial mass of substance present = 24 g and t = time

Also, λ = 0.693/t' where t' = half-life of iodine = 8 days

So, λ = 0.693/t'

λ = 0.693/8

λ = 0.086625/day

Since the mass of substance left is N = N₀exp(-λt) and we require the mass of substance after t = 7 days,

N = N₀exp(-λt)

N = 24 gexp(-0.086625/day × 7 days)

N = 24 gexp(-0.606375)

N = 24 g × 0.5453

N = 13.09 g

So, the mass of substance left after 7 days is 13.09 g

Learn more about radioactive decay here:

brainly.com/question/23705307

7 0
3 years ago
(Will mark brainest)If it rains tomorrow the probability is 0.6 that James will practice piano. if it doesn't rain tomorrow ther
sergiy2304 [10]

Answer:

0.64

Step-by-step explanation:

P(J / R) = P (J and R) / P(R) 

0.8 = P (J and R) / 0.6 

P (J and R) = 0.6 * 0.8 = 0.48 [Probability John practicing and it is raining] 

P(J / NR) = P (J and NR) / P(NR) 

0.4 = P (J and NR) / (1 - 0.6) = P (J and NR) / 0.4 

P (J and NR) = 0.4 * 0.4 = 0.16 [Probability John practicing and it is not raining] 

Hence; 

Probability of John practicing regardless of weather condition is 

P(John Practicing) = 0.48 + 0.16 = 0.64

HOPE THIS HELPED!!!

7 0
3 years ago
What is the solution for r in the following system of equations?<br> 2x + 3y = 16<br> 2 + 2y = 10
klio [65]

Answer:

(2,4)

*View attached graph*

Step-by-step explanation:

2x + 3y = 16

2 + 2y = 10

2 + 2y = 10

-2          - 2

2y = 8

/2  /2

y = 4

2x + 3y = 16

2x + 3(4) = 16

2x + 12 = 16

    - 12   - 12

2x = 4

/2   /2

x = 2

(x,y) -> (2,4)

Hope this helps!

8 0
2 years ago
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