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s344n2d4d5 [400]
3 years ago
9

Classify the random variables below according to whether they are discrete or continuous.

Mathematics
1 answer:
Ann [662]3 years ago
3 0

Answer:

a) Continuous

b) Continuous

c) Discrete

d) Continuous

e) Discrete

Step-by-step explanation:

Discrete variable

Discrete variables are numerical variables that have a countable number of values between any two values. A discrete variable is always numerical. For example, the number of people with blood type Upper A in a random sample of 42 people.

Continuous variable

Continuous variables are numerical variables that have an infinite number of values between any two values. A continuous variable can be numeric or date / time. For example, the time it takes to fly from City Upper A to City Upper B.

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Please helppp
tangare [24]

Answer:

Adult: 50 tickets

Child: 34 tickets

Step-by-step explanation:

Let a be the amount of adult tickets

Let c be the amount of child tickets

Equation:

a + c = 84

14a + 9c = 1,006

Step 1: Multiply a + c = 84 with -9, to canceled c.

-9 (a + c = 84)    →  -9a - 9c = -756

14a + 9c = 1006 → 14a + 9c = 1006

Step 2: Combined the 2 equation together, and solved it.

-9a - 9c = -756

<u>14a + 9c = 1006</u>

       <u> 5a</u> = <u>250</u>

        5        5

           a = 50

Step 3: Plug 50 into the one of the equation, and solved it.

a + c = 84 → 50 + c = 84

                  <u>-50         -50</u>

                            c = 34

Answer: Adult tickets (a) = 50 and Child tickets (c) = 34

To check the answer plug the two number into the equation ( Make sure to add 50 for a and 34 for c).

3 0
3 years ago
A lake has a small patch of lily pads and every day the patch grows to double its size. It takes 32 days for the patch to cover
S_A_V [24]

Answer:

<em>It took 31 days for the patch to cover half the lake</em>

<em></em>

Step-by-step explanation:

The patch grows to double its size everyday

the patch completely covers the lake in 32 days

Since the patch doubles itself everyday, this means that the previous day before the 32nd day, the lake was just half covered.

Therefore, the the patch covered half the lake on the 31st day, i.e <em>it took 31 days for the patch to cover half the lake</em>

<em></em>

6 0
3 years ago
Caroline earns $54 babysitting for 6 hours
Lady_Fox [76]
It would be $9 per hour all you have to do is divide 54 by 6 you get 9, unit rate is 1

I hope this helps
6 0
3 years ago
Chase purchased a sweatshirt from the clearance rack. The price of the sweatshirt after the discount is represented by the expre
Black_prince [1.1K]

Answer:B(0.75+0.25)x

Step-by-step explanation:

Is a discount of 0.75 was given the d real value of the sweatshirt would be a whole number

Which is 1-0.75=0.25

6 0
3 years ago
Write A expression for increased by 23
Akimi4 [234]

Answer:

5+23

Step-by-step explanation:

increased by is another word for add

7 0
3 years ago
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