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  3. given a normal distribution with (mean) ?= 50 and

Given a normal distribution with (mean) ?= 50 and (standard deviation) ? = 4, what is...

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Basic Math

Given a normal distribution with (mean) ?= 50 and (standarddeviation) ? = 4, what is the probability that

NOTE: I'd like to learn how to do this in the shortestway possible on ti 84 plus calculator.

a) x>43

b) x<42

c) x>57.5

d) 42

e) x<40 or x>55

f) 5% of the values are less than what X value?

g) 60% of the values are between what two X values(symmetrically distributed around the mean)?

h) 85% of the values will be above what X value?

Answer & Explanation Solved by verified expert
3.7 Ratings (527 Votes)
We have given mean 50 and standard deviation 4 a probability of X 43 P X 43 09599 b Probability of X 42 P X 42 00227 c Probability of X 575 P X 575 003039 d    See Answer
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