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Kisachek [45]
3 years ago
15

If p = the game system's original price in dollars, which algebraic expression represents the reduced price?

Mathematics
1 answer:
kodGreya [7K]3 years ago
8 0

Answer: The answer is B. p-99

Step-by-step explanation: The price goes first and then since it’s reducing you put minus 99 since it’s decreasing the price of the game system. Hope this was helpful y’all have a blessed day

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Answer:

We know that n = 50 and p =0.78.

We need to check the conditions in order to use the normal approximation.

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Step-by-step explanation:

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Solution to the problem

We know that n = 50 and p =0.78.

We need to check the conditions in order to use the normal approximation.

np=50*0.78=39  \geq 10

n(1-p)=50*(1-0.78)=11 \geq 10

Since both conditions are satisfied we can use the normal approximation and the distribution for the proportion is given by:

p \sim N (p, \sqrt{\frac{p(1-p)}{n}})

With the following parameters:

\mu_ p = 0.78

\sigma_p = \sqrt{\frac{0.78*(1-0.78)}{50}}= 0.0586

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