Question: 10. Find the z-value such that the interval from -zo to +20 contains a) 50%. b) 90%. c) 95%, d) 98%. e) 99% of the

10. Find the z-value such that the interval from -zo to +20 contains

a) 50%.

b) 90%.

c) 95%,

d) 98%.

e) 99% of the probability for a nonnal distribution.

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