For a store contest, 4 out of every 65 people who visit the store will receive a free DVD if 455 people visit how many DVDs were
2 answers:
Answer:
28 DVDs will be distributed.
Step-by-step explanation:
For a store contest out of 65 people 4 people receive a free DVD.
We have to calculate the number of DVDs distributed when 455 people visit the store.
We will apply the unitary method to find the number of DVDs distributed.
∵ When 65 people visit the store number of DVDs = 4
∴ when 1 person visit the store then number of DVDs distributed =
∴ When 455 people visit the store then DVDs distributed =
= 28
Therefore, 28 DVDs will be distributed.
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Answer:
(a) and
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Step-by-step explanation:
(a)
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(b)
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Answer:
By the Central Limit Theorem, the mean of the average scores you get will be close to 1012.5.
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean and standard deviation
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Mean score of the population:
1012.5
If you do this many times, the mean of the average scores you get will be close to
By the Central Limit Theorem, the mean of the average scores you get will be close to 1012.5.