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pickupchik [31]
3 years ago
10

1.) To boost the local economy, a city business bureau provides discounts to area attraction for people attending conventions, h

oping this will encourage them to bring their families. The bureau wants to see if the marketing campaign was successful.
Which of these methods will produce the most representative sample of the population of convention participants?

A: The bureau sends an email to a random selection of people who have been registered as convention participants during the past six months.

B: Surveyors stand outside local attractions and ask arriving guests if any member of their family is in town for a convention.

C: The business bureau surveys all the convention visitors who stay at the hotel nearest the convention hall.

D: Surveyors stand beside one of the booths during a convention and ask the people who visit the booth if they brought their families.
Mathematics
1 answer:
andreev551 [17]3 years ago
5 0
The business bureau surveys all the convention visitors who stay at the hotel nearest the convention hall.
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Answer:

14,800 people are expected to attend the concert

Step-by-step explanation:

In this question, we are tasked with calculating the expected number of people that will attend a concert on a particular day.

The key to answering this question is to multiply the individual probabilities of the two events by the expected number of people

Mathematically, what we obtain is the following;

The expected number of people at the concert = (probability of raining × expected number of people when it rains) + (probability of not raining × Expected number of people when it does not rain)

From the question, we identify that;

Probability of raining = 30% = 30/100 = 0.3

Probability of not raining = 1-probability of raining = 1-0.3 = 0.7

Expected number of people when it rains = 5,000

Expected number of people when there is no rain = 19,000

we plus these vales into the equation we have;

The expected number of people at the concert =( 0.3 × 5,000) + (0.7 × 19,000) = 1,500 + 13,300 = 14,800 people

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3 years ago
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olga_2 [115]
You are now on the 5th floor. 
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Answer:

Jena=18 miles Brian=36 miles

Step-by-step explanation:

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