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Sphinxa [80]
3 years ago
14

A class of 12 girls and 14 boys is going to choose 3 students to represent them in student government. Allie suggested that the

first 3 students to arrive in class the next day should be the representatives. Bobby suggested that each student roll 2 numbers cubes and the 3 students with the highest sum should be the representatives. Whose method would result in a fair sample that represents the class population, and why?
Mathematics
2 answers:
Furkat [3]3 years ago
6 0
I would say Bobby's suggestion would be the most fair method. His method would be completely fair to the whole class because it is by chance that you role a certain number. On the other hand, Allie's suggestion is not completely fair to all the kids in the class. Some kids have an advantage of getting to class earlier than others due to how they get to school. Some take a bus, some take a car, other walk. The walkers might get to school faster than the car riders and busers, so that is not fair to the whole class.
Westkost [7]3 years ago
3 0
The body because everyone has an equal chance
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At least pet snake is 42 inches long and Royals pet snake is 8 feet long.How many inches longer is Royals snake
Ostrovityanka [42]

Answer:

54 inches

Step-by-step explanation:

At least pet snake is 42 inches long and Royals pet snake is 8 feet long.How many inches longer is Royals snake

Step 1

We would be converting the length of the Royal's pet snake to inches

1 foot = 12 inches

8 feet = x

Cross Multiply

x = 8 × 12 inches

x = 96 inches

Step 2

How many inches longer is Royal's snake?

This is calculated by subtracting the length of the Royal's pet snake from the least length

= 96 inches - 42 inches

= 54 inches

Therefore, the Royal's snake is 54 inches longer

7 0
2 years ago
0.5x+7/3 = 21/4 cross multiply
TiliK225 [7]

Solving the expression  \frac{0.5x+7}{3}=\frac{21}{4} we get: x=\frac{35}{2}\,\,or\,\,x=17.5

Step-by-step explanation:

Solving the expression: \frac{0.5x+7}{3}=\frac{21}{4}

Solving by cross multiplying:

\frac{0.5x+7}{3}=\frac{21}{4}\\(0.5x+7)*4=21*3\\Simplifying:\\2x+28=63\\Adding\,\,-28\,\,on\,\,both\,\,sides:\\2x+28-28=63-28\\2x=35\\Divide\,\,both\,\,sides\,\,by\,\,2\\\frac{2x}{2}=\frac{35}{2}\\x=\frac{35}{2}\,\,or\,\,x=17.5

So, solving the expression  \frac{0.5x+7}{3}=\frac{21}{4} we get: x=\frac{35}{2}\,\,or\,\,x=17.5

Keywords: Solving Fractions

Learn more about Solving fractions at:

  • brainly.com/question/2456302
  • brainly.com/question/1648978
  • brainly.com/question/13174289
  • brainly.com/question/1677114

#learnwithBrainly

3 0
3 years ago
Suppose you just flipped a fair coin 8 times in a row and you got heads each time! What is the probability that the next coin fl
Svetllana [295]

Answer:

The probability is 1

Step-by-step explanation:

Given

Number of flips = 8

Outcomes = 8 heads

Required

Probability of getting a head in the next row

This problem can be attributed to experimental probability and it'll be solved using experimental probability formula, which goes as follows;

Probability = \frac{Number\ of\ Occurence}{Total\ Trials}

Let P(Head) represents the probability of getting a head in the next row;

P(Head)= \frac{Outcome\ of\ head}{Total\ Flips}

P(Head)= \frac{8}{8}

P(Head)= 1

Hence, the probability of obtaining a head in the next flip is 1

8 0
3 years ago
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