Question

If X is a normal variate with mean 30, SD is 5. Find the probability that 1.26 SX <40, 2. X245
A 1=89
B. 1=0.7653
C. 2=4
D. 2=0.0014​

Answer 1

Answer:

The rust contains copper hydroxide and copper carbonate. 2) It can be replaced from its salt solution by reactive metal. Use: It is used in electrical wires as it is a good conductor of electricity and very ductile.

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Physical properties:

Good conductor of electricity.

Good conductor of heat.

Very ductile.