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marta [7]
3 years ago
10

g Explain why x is a discrete random variable. A. The event x is a discrete random variable because the values of the random var

iable are countable and each possible outcome is equally likely. B. The event x is a discrete random variable because the values of the random variable are contained in one or more intervals and each possible outcome is not equally likely. C. The event x is a discrete random variable because the values of the random variable are countable. D. The event x is a discrete
Mathematics
1 answer:
VARVARA [1.3K]3 years ago
4 0

Answer:

Correct option: C

Step-by-step explanation:

A random variable, denote by <em>X</em>, is a variable whose probable values are numeric and are of a random occurrence. There are two types of random variables, discrete and continuous.

A discrete random variable is the one which takes on only a finite number of distinct values such as 0, 1, 2, 3, 4... For example, the number of female members in a family, the daily attendance at a yoga class, the number of defective light bulbs in a box of five bulbs.

The probability distribution of a discrete random variable consist of a list of probabilities related with the respective possible values. It is also known as the probability mass function.

The correct statement describing <em>X</em> is:

C. The event x is a discrete random variable because the values of the random variable are countable.

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The previous balance in your check register is $234. 67. You make a deposit of $150. 0. You write a check for $63. 23. What is y
Leno4ka [110]

Answer:

321.44

Step-by-step explanation:

(234.67+150)-63.23

8 0
3 years ago
Please help me with this thanks
Ronch [10]

If x = 1, then 3*1 = 3 which when modded with 5, we get 3 as a remainder. In other words, 3/5 = 0 remainder 3. We don't use the quotient at all when it comes to modular arithmetic. All we care about is the remainder.

If x = 2, then 3*2 = 6 which leads to remainder 1 when we divide by 5. Therefore, 3x = 1 (mod 5) when x = 2.

If x = 3, then 3*3 = 9 = 4 (mod 5) because 9/5 = 1 remainder 4.

So 3x = 4 (mod 5) when x = 3.

<h3>The final answer is C) 3</h3>

We don't need to check D since x = 3 is a solution and it's smaller than x = 4.

If you wanted to check x = 4, then 3*4 = 12 = 2 (mod 5) because 12/5 yields a remainder of 2.

7 0
3 years ago
A person died leaving property worth Rs 4000.40. His widow got 0.125 of the property. His son got 0.4 of the remainder. What did
MakcuM [25]

Answer:

$2100.21

Step-by-step explanation:

If the widow gets 0.125 and the son gets 0.4, together they get 0.525, or 52.5%. If you multiply 4000.4 * 0.525, you get 2100.21, which is a little over half of 4000.

4 0
4 years ago
Read 2 more answers
Which expression shows the results of applying the distributive property to 3 (1/5x- 1/7)
marshall27 [118]

The first option: (3/5)x - 3/6

3 0
2 years ago
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In one area, the lowest angle of elevation of the sun in winter is 27.5°. Find the minimum distance x that a plant needing full
Alex73 [517]

Answer:

The minimum distance x that a plant needing full sun can be placed from a fence that is 5 feet high is 4.435 ft

Step-by-step explanation:

Here we have the lowest angle of elevation of the sun given as 27.5° and the height of the fence is 5 feet.

We will then find the position to place the plant where the suns rays can get to the base of the plant

Note that the fence is in between the sun and the plant, therefore we have

Height of fence = 5 ft.

Angle of location x from the fence = lowest angle of elevation of the sun, θ

This forms a right angled triangle with the fence as the height and the location of the plant as the base

Therefore, the length of the base is given as

Height × cos θ

= 5 ft × cos 27.5° = 4.435 ft

The plant should be placed at a location x = 4.435 ft from the fence.

8 0
4 years ago
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