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Kruka [31]
3 years ago
5

QUESTION 16The cost of DVD players has dropped by $20 each year. If a DVD player cost $189 four years ago, how much does it cost

today?$109.00$269.00$30.24$77.41
Mathematics
2 answers:
astra-53 [7]3 years ago
5 0
It costs $109 Now. Hope this helps
butalik [34]3 years ago
4 0

-20 each year

how many years? 4

-20 times number of years=drop

-20 times 4=-80

dropped by -80 total


if costs 189 before, now it is 189-80=109

costs $109.00 today

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Using the normal approximation to the binomial, it is found that:

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--------------------------------

Binomial probability distribution

Probability of exactly x successes on n repeated trials, with p probability.

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And standard deviation of:

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Normal probability distribution  

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The standard deviation of X is of:

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A similar problem is given at brainly.com/question/24261244

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