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svlad2 [7]
2 years ago
9

A survey revealed that 60% of people are entertained by reading books, 50% are entertained by watching TV, and 20% are entertain

ed by watching both books and TV. What is the probability that a person will be entertained by books or TV
Mathematics
1 answer:
Rainbow [258]2 years ago
4 0

Question seem incorrect because 60%,50% and 20% sum up to more than a 100% therefore we've made a little correction

Answer:

0.8

Step-by-step explanation:

Probability = number of favorable outcomes/number of outcomes

Given that 30% are entertained by reading books

50% are entertained by watching TV

20% are entertained by reading books and watching TV

The probability that a person will be entertained by books or TV =

30/100+50/100= 3/10+5/10

=8/10

=0.8

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Step-by-step explanation:

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7 0
2 years ago
Which of the following events are dependent?
cestrela7 [59]

Answer:

A. Archie and Harris take turns picking yellow- or purple-colored chips from a dish.

C. Lily draws a marble from a bag filled with red and blue marbles, places her selection in a separate bag, and draws from the original bag of marbles again.

Step-by-step explanation:

Two events will be dependent if the first event influences the probability of the second event. If the first event takes something and doesn't put it back, that means the second event can't pull the same roll and the total pool of items changed.

A. Beth and Corrie take turns picking a card at random and recording each outcome. They replace the selected card at the bottom of the pile after each turn.

This option put replace the card, so it is independent

B. Archie and Harris take turns picking yellow- or purple-colored chips from a dish.

No replacement, the event should be dependent.

C. Jared pulls out a sock from the laundry basket containing white and black socks, puts it back, and then draws another sock at random.

This option  put back the pulls, so it is independent

D. Lily draws a marble from a bag filled with red and blue marbles, places her selection in a separate bag, and draws from the original bag of marbles again.

No replacement for the marble taken, each draws probability should depend on the earlier draw result.

8 0
2 years ago
Solve the following equation. Then place the correct number in the box provided. 2x - 1 ≤ x + 5
Mazyrski [523]

\huge\textbf{TheStarryNights }Hi There!

Solve the Inequality:

2x-1≤x+5

Move all the variables (in this case, x's) to the left, using the opposite operation:

2x-x-1≤5

Move -1 to the left:

2x-x≤5+1

Combine like terms:

x≤6 (Answer)

<h3>Hope it helps & enjoy your day!</h3>

\huge\textbf{TheStarryNights}

7 0
2 years ago
How many times can 3 go into 84
satela [25.4K]

well, 84 divided by 3 is 28 and if you check that by multiplying 28 with 3 you get 84 so its 28

8 0
3 years ago
Read 2 more answers
2e+4f+8g+16f is 2(e+2f+4g+8f) right??​
Ugo [173]

Answer:

right

Step-by-step explanation:

7 0
3 years ago
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