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arsen [322]
3 years ago
6

Of all those people who enter Uncle`s Stereo, a discount electronics store in New York City, 28% purchase a digital camera, 5% b

uy a home theater receiver, and 4% buy both. Suppose a customer is selected at random. What is the probability that the customer buys either a digital camera or a home theater receiver but not both
Mathematics
1 answer:
sergeinik [125]3 years ago
5 0

Answer:

25% of the people either buys a digital camera or a home theater receiver buth not both.

Step-by-step explanation:

The percentage of the customers that buy both a digital camera (D) and a home theather receiver (H) are included in the respective percentages (28% and 5%), so to calculate the percentage that buy only one of the items, we have to substract the percentage that buy both items from each of the percentages:

- If 28% of the people purchase a digital camera, and 4% buy both items, then 28-4=24% of the people buy only a digital camera.

- If 5% of the people purchase a home theater receiver, and 4% buy both items, then 5-4=1% of the people buy only a home theater receiver.

Then, we can add 24% and 1% and have that 25% of the people either buys a digital camera or a home theater receiver buth not both.

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6a^3+ 22a^4+ 14a-10

Step-by-step explanation:

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3 years ago
Automobile license plates for a state consist of four letters followed by a dash and two single digits. How many different licen
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The number of different license plate combinations that are possible if exactly one letter is repeated exactly once, but digits cannot be repeated is 8,424,000.

<h3>What is combination?</h3>

A combination is just a mathematical technique for determining the number of potential arrangements in a set of objects where the order of a selection is irrelevant.

You can choose the components in any order in combinations. Permutations and combinations are often mistaken.

Now according to the question,

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But, there are ⁴C₂ = 6 spots available for the identical letters.

And there are (25)×(24) other methods for selecting the other two letters.

The total amount of "words" equals ⁴C₂ × 26 × 25 × 24 = 93600.

Furthermore, because the numerals cannot be repeated = 10 × 9 = 90

So, the total number of choices = 93600 × 90 = 8,424,000

Therefore, the total combinations in which the letters can be chosen for the license plates is  8,424,000.

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4 0
1 year ago
Which of the following best describes the graph below?
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B. It is a one-to-one function

Step-by-step explanation:

B. It is a one-to-one function

8 0
2 years ago
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i think its 52 miles.

the fraction of the time is 4/5 which is .8 so

65 * .8 = 52

i hope this helps :)

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