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    Brand Probability is determined.

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    A major hat store chain is having a sale on three nationally known brands, A, B and C. Probabilities that Brand A, Brand B or Brand C will not be big sellers are: 0.30, 0.40, and 0.50, respectively. All three brands are manufactured by three independent companies.
    Calculate the probability that:

    a. None of the brands will be big sellers,
    b. Exactly two brands will be big sellers,
    c. Exactly one brand will be a big seller,
    d. All three brands will be big sellers.

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    Solution Preview

    All 3 brands will be on sale
    <br>For each of the brands, either they will sell or they won't sell.
    <br>This is like tossing 3 On Sale coins
    <br>But for a normal coin there is 1 chance in 2 of a head and 1 chance in 2 of a tail and the chances of No Sale or a Sale are 0.5:0.5 (50:50)
    <br>Here
    <br>For Brand A the chances of No Sale or a Sale are 0.3:0.7 (30:70)
    <br>For Brand B the chances of No Sale or a Sale are 0.4:0.6 (40:60)
    <br>For Brand C the chances of No Sale or a Sale are 0.5:0.5 (40:60)

    <br>
    <br>a) The probability that none will sell is the probability 3 No ...

    Solution Summary

    A major hat store chain's probabilities are configured.

    $2.19

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