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1. The Probability that at least one person did not choose Coke is 7/10.

   According to the statement

   we have given that the in a consumer survey, 10 people were asked to choose a cola among Coke, Pepsi, and RC.

   And we have to find the probability that at least one person did not choose Coke.

   So, for this purpose, we have know that the

   Probability is the chance that a given event will occur.

   In probability, at least mean the minimum value that should occur once a random event happens.

   And

   the number of person which take part in a survey = 10

   Number of items to choose = 3

   The probability that the all person choose cola = 3/10

   And

   we know that the at least probability is:

   at least probability = 1 – simple probability

   So,

   Probability that at least one person did not choose Coke = 1 – Probability that all person did choose Coke

   Substitute the values in it then

   Probability that at least one person did not choose Coke = 1 – 3/10

   Probability that at least one person did not choose Coke = 7/10.

   So, The Probability that at least one person did not choose Coke is 7/10.

   Learn more about Probability here

   https://brainly.com/question/24756209

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