Respuesta :
Answer:
0.37585
once again just look up the numbers on the Z table..
in this case you want the values to the LEFT of z=-.79 and to the RIGHT of z=.99
Step-by-step explanation:
-0.79 (L)0.21476
0.99 (R)0.16109
0.37585
The numerical value of the area under the normal curve is 0.3759 if the standard deviation value is NOT between -0.79 and 0.99.
What is a normal distribution?
It's the probability curve of a continuous distribution that's most likely symmetric around the mean. On the Z curve, at Z=0, the chance is 50-50. A bell-shaped curve is another name for it.
We have given:
The standard deviation value = NOT between -0.79 and 0.99
= P(not between - 0.79 and 0.99)
= P( x < -0.79) + P(x > 0.99)
= 1 - P( x < 0.79) + 1 - P(x < 0.99)
From the Z-table:
P( x < 0.79) = 0.7852
P(x < 0.99) = 0.8389
= 2 - 0.7852 - 0.8389
= 2 - 1.6241
= 0.3759
Thus, the numerical value of the area under the normal curve is 0.3759 if the standard deviation value is NOT between -0.79 and 0.99.
Learn more about the normal distribution here:
brainly.com/question/12421652
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