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2 years ago

You have 8 names of people on a list. If you randomly chose pairs of two's, how many potential pairs are there?

Mathematics

1 answer:

exis [7]2 years ago

3 0

Answer:

Step-by-step explanation:

Because there are 8 names and when you choose a name there are 7 people that can be a pair so 7*8=56

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I need the anser for 5x+6x

s344n2d4d5 [400]

Answer:

11x will be the answer

Step-by-step explanation:

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2 years ago

Three fifths of the automobiles entering the city each morning will be parked in city parking lots. These cars fill 3654 parkin

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$(x - 3)^{2} + 5 for x = 10$

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3 years ago

3(6x+2)<9 solve the inequality

vladimir1956 [14]

3(6x+2) <9

Use distributive property:

18x + 6 < 9

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2 years ago

Is it ever possible that a decreasing function could have a positive slope?

kotegsom [21]

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3 years ago

A sample of 1800 computer chips revealed that 53% of the chips do not fail in the first 1000 hours of their use. The company's p

charle [14.2K]

Answer:

So the value of the test statistic is -0.85.

Step-by-step explanation:

We know that a sample of 1800 computer chips revealed that 53% of the chips do not fail in the first 1000 hours of their use. The company's promotional literature states that 54% of the chips do not fail in the first 1000 hours of their use.

We get that:

$n=1800\\\\p_1=53\%=0.53\\\\p_2=54\%=0.54\\$

We calculate the standar deviation:

$\sigma=\sqrt{\frac{0.53 \cdot (1-0.53)}{n}}=\sqrt{\frac{0.53 \cdot 0.47}{1800}}=0.01176$

We calculate the value of the test statistic:

$z=\frac{p_1-p_2}{\sigma}=\frac{0.53-0.54}{0.01176}=-0.85$

So the value of the test statistic is -0.85.

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3 years ago