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djverab [1.8K]
3 years ago
15

Thirty-five percent of teens buy soda (pop) at least once each week. Eleven kids are randomly selected. The random variable repr

esents the number of these kids who purchase soda (pop) at least once each week. For this to be a binomial experiment, what assumption needs to be made?
Mathematics
1 answer:
const2013 [10]3 years ago
3 0

Answer:

For the above to be considered a binomial experiment, it must be guaranteed:

1. That each child must offer one of two answers: yes, if I buy soda (pop) at least once a week / no, I do not buy soda (pop) at least once a week.

2. That the fact that a child, in particular, buys soda (pop) at least once a week, has no relationship (dependence) with another child buying soda (pop) at least once a week. week.

Step-by-step explanation:

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4 0
3 years ago
A 64-inch board is cut into three pieces so that the second piece is twice as long as the first piece, and the third
Dafna1 [17]
<h3>Answer:  40 inches</h3>

==========================================================

Explanation:

  • x = first piece
  • 2x = second piece, since its twice as long as the first
  • 5x = third piece, since its five time as long as the first

x is some positive real number, and the units of each are in inches.

Add up the smaller pieces and we should get 64 inches back again

x+2x+5x = 64

8x = 64

x = 64/8

x = 8

The first piece is 8 inches long.

2x = 2*8 = 16 is the length of the second piece (in inches)

The third piece is 40 inches because 5x = 5*8 = 40

--------

Summary:

first = 8 inches

second = 16 inches

third = 40 inches

Check: 8+16+40 = 64, which confirms the answer

8 0
3 years ago
-7(-2a+6)=2a-6(-a+7)
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Answer:

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6a-42=-42

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3 years ago
67 times a number minus 58 is equal to 36 less than the number
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8 0
3 years ago
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