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melomori [17]
2 years ago
8

Select the correct answer

Mathematics
1 answer:
leonid [27]2 years ago
6 0

Answer: C.156

Step-by-step explanation:

Given: Total seashells = 160

mean = 120

population standard deviation = 26 grams

The probability that the seashells weigh at least 68 grams :-'

P(X\geq68) =P(\dfrac{x-\mu}{\sigma}\geq\dfrac{68-120}{26})\\\\=P(z\geq-2)\\\\=P(z

Total seashells weigh at least 68 grams = 0.9772 x 160 = 156.352≈ 156

Hence, the correct option is C.156

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Step-by-step explanation:

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Step-by-step explanation:

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The function we have is an example of an exponential function f(x)=b^x with b > 0 and b ≠ 1. This types of functions in general have the following properties:

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When determining domain it is more convenient to determine where the function would not exist.

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