Yes, the histogram looks like a bell curve. Need Help? Read 03 points JModd8 4.4
ID: 3063838 • Letter: Y
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Yes, the histogram looks like a bell curve. Need Help? Read 03 points JModd8 4.4.006 What percent of the standard normal z-distribution lies between the following values? (Round your answers to two decimal places.) (a) z 0 and z = 2 (b) z-2 and z0 (o) z =-2 and z-2 (Note: This interval represents two standard deviations of the mean.) Need Help? Reawatch Watch It Submit Answer Save Progress 410 points JModd8 44.010 A population is normally distributed with mean 19 and standard deviation 1.4. (a) Find the intervals representing one, two, and three standard deviations of the mean. (smaller value)Explanation / Answer
a) FROM NORMAL DISTRIBUTION)
P(0<z<2) =(0.9972-0.5)*100 =47.72%
b)
P(-2<Z<0) =47.72%
c)P(-2<Z<2 )=95.45%
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