Types of rock selected for analysis

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Reference no: EM13104832

A geologist has collected 10 specimen of balastic rock and 10 specimens of granite. The geologist instructs a labatory assisstant to randomly select 15 of specimen for analysis.

a. What is the number of granite specimen selected for analysis?

b. What is probability that all specimen of one of the two types of rock are selected for analysis?

c. What is the probability that the number of granite selected for analysis is within 1 standard deviation of it means value.

Reference no: EM13104832

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