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nekit [7.7K]
3 years ago
6

Electronics Unlimited sells TVs. There are 110 TVs on display in the showroom, and each TV is turned on to a random channel from

a set of 11 channels: 7 sports channels, 3 news channels, and 1 movie channel.
Which statement best predicts how many TVs will not be showing a sports channel?


Choose 1 answer:



A

There will be exactly 40 TVs not showing a sports channel.



B

There will be close to 40 TVs but probably not exactly 40 TVs not showing a sports channel.



C

There will be exactly 70 TVs not showing a sports channel.


D

There will be close to 70 TVs but probably not exactly 70 TVs not showing a sports channel.

PLSS HELP 100 POINTS AND BRAINLIEST FOR RIGHT ANSWER!!!!!

Mathematics
2 answers:
NARA [144]3 years ago
8 0

Answer: There will be close to 40's TVs but probably not exactly 40's TVs not showing a sports channel.

Step-by-step explanation:

lowkey i had to guess get it wrong and get the correct answer for yall, be happy

Lynna [10]3 years ago
3 0

Answer:

  • <u><em>Option B. There will be close to 40 TVs but probably not exactly 40 TVs not showing a sports channel.</em></u>

Explanation:

There are a total of <em>7 sports channels</em> and 4 non-sports channels o<em>ut of 11 channels.</em>

The probability that one <em>TV will be not be showing a sports channel</em>, P(not S), is:

  • P(not S) = number of non-sports channels / number of channels.

  • P(not S) = 4/11.

The <em>best prediction</em> on <em>how many TVs will not be showing a sports channel </em>is, the expected value, which is equal to the number of TVs mulitplied by P(not S):

  • P(not S) = 110 × 4/11 = 40.

Since this is a random variable, the expected value is not the exact number of TV but just a probability.

Hence, the answer is the option <em>B: There will be close to 40 TVs but probably not exactly 40 TVs not showing a sports channel.</em>

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