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Kobotan [32]
4 years ago
14

At tryouts, the coach has everyone randomly choose a number from a hat to decide the order in which they will perform. Nicole pi

cks a number first and gives it to the coach. Diane picks a number second. Are these events dependent or independent? A. dependent B. independent
Wendy rolls a 6 on a number cube. She then rolls a 1.

Are these events dependent or independent?

A.
dependent

B.
independent




Which situation shows dependent events?

A.
Erin randomly writes a number between 1 and 10. Ashley randomly writes a number between 1 and 10.

B.
The songs on a playlist are playing randomly. A song can be played more than once.

C.
Nia pulled a pencil from a drawer without looking. She handed it to Fred. Then, Nia pulled another pencil from the same drawer without looking.

D.
Madison spins the same spinner 5 times.


Which situation shows independent events?

A.
Sarah randomly picks a sock from her drawer. She puts the sock on. Then Sarah randomly picks another sock from the same drawer.

B.
Amy randomly picks a box of cereal from a variety pack and eats the cereal. Then Chris randomly picks a box from the pack.

C.
Nathan picks a game piece for monopoly without looking. Michelle randomly picks one of the remaining game pieces.

D.
Brandon and Jordan roll a number cube to decide who will play a game first. Brandon rolls a 4. Then Jordan rolls a 6.
Mathematics
1 answer:
SVEN [57.7K]4 years ago
7 0
Idk the first one but  2nd one is (c)Nia pulled a pencil from a drawer without looking...   and the last one is (d) brandon and jordan roll a number cube....
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four cups of pure water are added to a 20-cup bowl of punch that is 75% juice. What percent of the new punch us juice?
olasank [31]
Juice is 20-cup * 75% = 15-cup, now water and juice are in total (4+20)-cup, so the percent of juice should be 15/24=62.5%
3 0
4 years ago
What is 33/40 as a decimal?
creativ13 [48]
\frac{33}{40}=\frac{33 \times 25}{40 \times 25}=\frac{825}{1000}=\boxed{0.825}
5 0
4 years ago
His new employer has offered Malcom Davis a choice of profit-sharing plans. For Plan A, he can receive 1/90 of the company’s gro
Strike441 [17]

Malcom Davis earnings is an illustration of equations and proportions.

  • The equation is: \mathbf{\frac{1}{90}G= \frac{1}{60}(G- 100000)}
  • The gross income must be $300000, for Dave to earn the same amount with either plan.
  • His earning is $3333.33 when the plans are the same.

Let the profit be P, and the gross income be G.

So, we have:

\mathbf{P= G - 100000}

<u>(a) The equations</u>

For plan A, we have:

<em />\mathbf{A = \frac{1}{90}G}<em> ----1/90 of the company's gross income</em>

For plan B, we have:

<em />\mathbf{B = \frac{1}{60}P}<em>  ----1/90 of the company's profit</em>

When both are the same, we have:

\mathbf{A= B}

This gives

\mathbf{\frac{1}{90}G= \frac{1}{60}P}

Substitute \mathbf{P= G - 100000}

\mathbf{\frac{1}{90}G= \frac{1}{60}(G- 100000)}

Hence, the equation is: \mathbf{\frac{1}{90}G= \frac{1}{60}(G- 100000)}

<u>(b) Solve the equation in (a), and intepret</u>

\mathbf{\frac{1}{90}G= \frac{1}{60}(G- 100000)}

Cross multiply

\mathbf{60G = 90G - 9000 000}

Collect like terms

\mathbf{90G - 60G = 9000 000}

\mathbf{30G = 9000 000}

Divide both sides by 30

\mathbf{G = 3000 00}

The gross income must be $300000, for Dave to earn the same amount with either plan.

<u>(c) His earnings based on (c)</u>

We have:

\mathbf{A = \frac{1}{90}G}

Substitute \mathbf{G = 3000 00}

\mathbf{A = \frac{1}{90} \times 300000}

\mathbf{A = 3333.33}

His earning is $3333.33 when the plans are the same

<u>(d) If the gross income in less than (b)</u>

If the gross income is <em>less than $300,000</em>, then plan A would better for Malcom Davis, because his earnings in plan A would be <em>greater than </em>plan B

Read more about equations at:

brainly.com/question/20893366

8 0
3 years ago
In stratified random sampling,(A) randomly selected elements within each of the strata form the sample.(B) all elements within t
otez555 [7]

Answer: (A) randomly selected elements within each of the strata form the sample.

Step-by-step explanation:

Stratified random sampling is a random sampling technique in statistics .

  • It includes the partition of the entire population into sub-parts called strata.
  • The strata are formed on the basis of the characteristics shared by members .
  • After the formation of strata, researcher randomly selects participants from each strata to ensure that that the participant of every group must involve in the sample to represent each character.

Hence, the correct answer is :

(A) randomly selected elements within each of the strata form the sample.

8 0
3 years ago
Number 4 please I need help please I need help please help me
kotykmax [81]

Answer:

The perimeter is 112 m

Step-by-step explanation:

The perimeter is the sum of all the edges

26+ 12 + 18 +? + ?+ 30

The two question marks add to 26 so replace them with 26

26+ 12 + 18 +26+ 30

112

The perimeter is 112 m

3 0
4 years ago
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