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Vinil7 [7]
3 years ago
13

Determine whether the random variable is discrete or continuous. In each​ case, state the possible values of the random variable

. ​(a) The number of free dash throw attempts before the first shot is madefree-throw attempts before the first shot is made. ​(b) The time it takes for a light bulb to burn outtime it takes for a light bulb to burn out.
Mathematics
1 answer:
ruslelena [56]3 years ago
6 0

Answer:

a) Discrete. It can be 2 or 3.

b) Continuous. It can be bigger than 700 hours.

Step-by-step explanation:

​(a) The number of free dash throw attempts before the first shot is made free-throw attempts before the first shot is made.

Discrete variables assumes finite number of isolated values. We can count the number of free dash throw attempts before the first shot is made, therefore this variable is discrete.

b) The time it takes for a light bulb to burn out time, it takes for a light bulb to burn out.

Continuous variables assume a value in a range rather than a set of finite numbers. Time is not countable but measurable. Therefore this variable is continuous.

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Fittoniya [83]

Answer:

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Step-by-step explanation:

8 0
3 years ago
I'm giving brainliest to the most helpful answer. For 50 points:
Alenkinab [10]

Answer:

1) \displaystyle\frac{5}{18}\approx27.78\%

2) \displaystyle\frac{4}{7}\approx57.14\%

3) \displaystyle  \frac{13}{16}=81.25\%

Step-by-step explanation:

We are given a two-way frequency table. Using the table, we will determine the probability for each case.

Question 1)

P(A Student With A Part Time Job Without A Car)

Using the first column, the total number of students that have a part time job is 78+30=108.

Likewise, using the first column, we can see that out of those 108 students, 30 do not have a car.

Hence, the probability that a student with a part time job without a car is:

\displaystyle P=\frac{30}{108}=\frac{5}{18}\approx27.78\%

Question 2)

P(No Car | Does Not Have A Part Time Job)

Remember that the vertical line means conditional probability.

So, we want the probability of a student having no car given that they do not have a part time job.

Using the second column, we can see that the total number of students that do not have a part time job is 18+24=42.

Likewise, using the second column, 24 do not have a car.

Hence, the probability that a student with a part time job without a car is:

\displaystyle P=\frac{24}{42}=\frac{4}{7}\approx57.14\%

Question 3)

P(Part Time Job | Car)

So, we want to probability of a student having a part time job given that they have a car.

Using the first row, the total students that have a car is 78+18=96.

And of those 96 students, 78 have a part time job.

Hence, the probability that a student with a car has a part time job is given by:

\displaystyle P=\frac{78}{96}=\frac{13}{16}=81.25\%

4 0
3 years ago
Fill in the book value at the end of year 1 under each depreciation method when residual value is $36,000 and useful life is 4 y
3241004551 [841]

Answer:

Depreciation method:

Straight-line

$335,250

Units-of-Output

Double-declining

$217,50

Using Straight Line method:

Book Value= $335,250

6 0
3 years ago
What is the value of the first term in the following arithmetic sequence?
xz_007 [3.2K]

Answer:

-9

Step-by-step explanation:

the first number

hope it is well understood

3 0
3 years ago
Negative 820 square root
erma4kov [3.2K]
A negative number doesn't have a square root...
only one number has to be negative not both... 
and 820 doesn't have a perfect square root... 
it would be 28.635...
7 0
3 years ago
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