True or False: a. For normal distribution, z-scores on the left-hand side are positive.

b. For normal distribution, proportions in the left-hand tail are positive.

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step-by-step explanation:

answer: for each 3 girls there is 2 boys . 3: 2

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the answer would be 484

step-by-step explanation:

just multiply 0.484 times 1,000 (formula)

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.