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gulaghasi [49]
3 years ago
7

mags wants to know what the hottest hairstyle Trend in is in our town what is the best group to survey of to find this informati

on

Mathematics
2 answers:
Butoxors [25]3 years ago
6 0

Answer:

The last option,

"Get a list of all the salons in her town and use a deck of cards to pick five of them to visit.  Survey all the hairstylists that work at each salon."

Step-by-step explanation:

When choosing a survey, we want to ensure not only that the survey is time-effective and cost-effective, but that it is representative of the entire population.

Just choosing the salons close to her house would not necessarily be a good representation of the entire town.

Choosing salons that celebrities go to creates bias in the survey as well, as does choosing only the salons she and her friends go to.

However, finding a list of all salons and using a deck of cards to represent it creates a random sample; this helps to eliminate bias and ensure the sample is representative.

kondor19780726 [428]3 years ago
6 0
You should choose the last option because it is the most random at choosing salons to ask and so will give the least biased answer.
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Jason and Eddy are traveling from Jacksonville to Miami, which is a distance of 382 miles. According to the American Automobile
wolverine [178]

Answer:

The value is  v =  49.23 \  mph

Step-by-step explanation:

From the question we are told that

  The  distance from Jacksonville to Miami is  d  =  382 miles

  The  time it take to travel from Jacksonville to Daytona is  t_1  = 1 \ hour\ and\ 54\ minutes = 1 + \frac{54}{60} =  1.9 \  hours

  The  time it take to travel from Daytona Beach to Fort Pierce is t_2  = 2\ hours\ and\ 51\ minutes= 2 + \frac{51}{60} =  2.85 \  hours

    The  time it take to travel from Fort Pierce to West Palm Beach is  

t_3  = 1\ hour\ and\ 23\ minutes= 1 + \frac{23}{60} =  1.38 \  hours

     The  time it take to travel from West Palm Beach to Miami t_4  = 1\ hour\ and\ 38\ minutes= 1 + \frac{38}{60} =  1.63 \  hours

Generally the average speed is mathematically represented as

      v  =  \frac{d}{t_1 + t_2 +t_3 + t_4 }

=>   v  =  \frac{382}{1.9  + 2.85 +1.38 + 1.63 }

=>    v =  49.23 \  mph

   

6 0
3 years ago
Jasmine wants to have an equal quantity of forks and spoons, what is the least number of packages of forks jasmine should buy to
vlada-n [284]

Answer:

6 packages of forks

Step-by-step explanation:

If Jasmine wants to have an equal quantity of forks and spoons, we need to list the multiples of each quantity and determine the least common multiple (LCM).

Forks: 10, 20, 30, 40, 50, 60, 70, 80, 90

Spoons: 12, 24, 36, 48, 60, 72, 84, 96

The LCM in this example is 60. In order to have exactly 60 forks and 60 spoons, Jasmine will need to buy 6 packages of forks [60 ÷ 10 = 6] and 5 packages of spoons [60 ÷ 12 = 5].

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3 years ago
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Answer:

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Step-by-step explanation:

In statistics, the probability of both an event A and an event B happening is equal to the probability of A happening multiplied by the probability of event B happening.

Let's say spinning a prime number is event A and rolling a number ≤ 4 is event B.

There are 8 possibilities on an eight equal segment spinner, and there are 4 prime numbers between 1 and 8 (including 8), which are 2, 3, 5, and 7. This means that the probability of spinning a prime number is 4/8, or 1/2

There are 6 possibilities on a die, and there are 4 possibilities of rolling a 4 or less (1, 2, 3, 4). Therefore, the probability of rolling 4 or less on a die is 4/6, or 2/3

The probability of both of these happening can be calculated by multiplying these together, so 1/2 * 2/3 = 2/6 = 1/3

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