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Naya [18.7K]
2 years ago
9

A number of tourist were interviewed on their

Mathematics
1 answer:
lidiya [134]2 years ago
3 0

Answer:

A number of tourists were interviewed on their choice of means of travel. Two- thirds said that they travelled by road, 1330 by air and 415 by both air and road. If 20 tourists did not travel by either air or road ; (i) represent the information on a Venn diagram ; (ii) how many tourists (1) were interviewed ; (2) travelled by air only?

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It has been estimated that 72.7% of alcoholics need professional help to stop drinking. What is the probability that a random al
Svetradugi [14.3K]

The probability that a random alcoholic can kick the habit without professional help is 0.273 .

<h3>What is Probability ?</h3>

Probability is the study of likeliness of an event to happen.

It has a range of 0 to 1 , where 0 indicates uncertainty and 1 indicates certainty.

It is given that

The alcoholics that need professional help to stop drinking is 72.7 %

Therefore the probability of this is 72.7 /100 = 0.727

The probability that they will not need professional help is given by

q = 1 - p

q = 1 -0.727

q = 0.273

Therefore the probability that a random alcoholic can kick the habit without professional help is 0.273 .

To know more about Probability

brainly.com/question/11234923

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5 0
1 year ago
Solve the inequality 3(2x+7)&gt;-3+5x.​
lilavasa [31]

Answer:

Check pdf

Step-by-step explanation:

Download pdf
7 0
3 years ago
2 is what percent of 12?​
REY [17]

Answer:

16.67

Step-by-step explanation:

sana po makatulong

5 0
3 years ago
4/9+4(x-1)=28/9-(x-7x)+1
kobusy [5.1K]
X= -23/6 or x= -3.83
6 0
3 years ago
Read 2 more answers
2. What is the external probability of rolling a 4
Nataly_w [17]

Answer:

2. 1- Experimental probability of rolling a 4 = 40%

3. 2- Theoretical probability is 3%  greater than experimental probability.

Step-by-step explanation:

Experimental probability of rolling a 4 = 100 × \frac{8}{20}

                                                                  = 100 × 0.4

                                                                  = 40%

Experimental probability of getting at least one tail  = \frac{72}{100}

                                                                                    = 0.72

Theoretical probability of getting at least one tail  = \frac{3}{4}

                                                                                  = 0.75

Theoretical probability is 3%  greater than experimental probability.

6 0
3 years ago
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