(-2.04)(4.08) = A) 8.3232 B) 2.04 -2.04 D) -8.3232
2 answers:
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Answer:
Step-by-step explanation:
Given
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Solve
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Open bracket
Collect like terms
Divide both sides by 2
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Answer:
Step-by-step explanation:
Given that the mean incubation time for a type of fertilized egg kept at a certain temperature is 25 days.
Let X be the incubation time for a type of fertilized egg kept at a certain temperature is 25 days.
X is N(25, 1)
a) Normal curve is in the attached file
b) the probability that a randomly selected fertilized egg hatches in less than 23 days
=
we convert x into Z score and use std normal distn table to find probability
i.e. we can say only 2.5% proportion will hatch in less than 23 days.
