'If X is a normally distributed with mean 6 and standard deviation 5. Find P( -6 < X < 18) a. 0.3849 b. 0.9054 C. 0.7698 d. 0.8976'
Added by Thomas W.
Step 1
To find the z-score for -6, we use the formula: z = (x - μ) / σ where x is the value, μ is the mean, and σ is the standard deviation. For -6: z = (-6 - 6) / 5 z = -12 / 5 z = -2.4 To find the z-score for 18: z = (18 - 6) / 5 z = 12 / 5 z = 2.4 Show more…
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