Question

*I'm having trouble with d.

Find the following probabilities based on the standard normal
variable *Z*. **(You may find it useful to reference
the** z table**.** **Leave no cells blank
- be certain to enter "0" wherever required. Round your answers to
4 decimal places.)**

a. P(-0.9 ≤ Z ≤ -0.44)

b. P(0.03 ≤ Z ≤1.5)

c. P(1.46 ≤ Z ≤ 0.05)

d. P(Z > 4)

Answer #1

Find the following probabilities based on the standard normal
variable Z. (You may find it useful to reference
the z table. Leave no cells blank
- be certain to enter "0" wherever required. Round your answers to
4 decimal places.)
a.
P(−1.01 ≤ Z ≤ −0.71)
b.
P(0.01 ≤ Z ≤ 2.45)
c.
P(−1.38 ≤ Z ≤ 0.06)
d.
P(Z > 3.2)

Find the following probabilities for the standard normal random
variable z. (Round your answers to four decimal
places.)
(a) P(?1.41 < z < 0.61) =
(b) P(0.55 < z < 1.78) =
(c) P(?1.54 < z < ?0.44) =
(d) P(z > 1.32) =
(e) P(z < ?4.31) =
You may need to use the appropriate appendix table or technology to
answer this question.

Find the following probabilities based on the standard normal
variable Z. (Use Excel to get the
probabilities. Round your answers to 4 decimal
places.)
a.
P(Z > 1.12)
b.
P(Z ≤ −2.35)
c.
P(0 ≤ Z ≤ 1.34)
d.
P(−0.8 ≤ Z ≤ 2.44)

Find the following probabilities based on the standard normal
variable Z.
1. a.P(−0.9 ≤ Z ≤ −0.59)b.P(0.04 ≤ Z ≤ 1.72)c.P(−1.4 ≤ Z ≤
0.06)d.P(Z > 3.6)

Find the following z values for the standard normal variable Z.
(You may find it useful to reference the z table. Negative values
should be indicated by a minus sign. Round your answers to 3
decimal places.)
a. P(Z ≤ z) = 0.1065
b. P(z ≤ Z ≤ 0) = 0.1746
c. P(Z > z ) = 0.9412
d. P(0.4 ≤ Z ≤ z) = 0.3177

Find the following z values for the standard normal variable Z.
(You may find it useful to reference the z table. Negative values
should be indicated by a minus sign. Round your answers to 2
decimal places.)
a. P(Z ≤ z) = 0.9478
b. P(Z > z) = 0.6321
c. P(-z ≤ Z ≤ z ) = 0.88
d. P( 0 ≤ Z ≤ z) = 0.3232
Please show work, thank you.

Find the following probabilities for a standard normal random
variable z : p(z > 1.53) with steps

Find these probabilities for a standard normal random variable
Z. Be sure to draw a picture to check your calculations. Use the
normal table or software.
(a)
P(Zless than<1.11.1)
(d)
P(StartAbsoluteValue Upper Z EndAbsoluteValueZgreater
than>0.40.4)
(b)
P(Zgreater than>negative 1.4−1.4)
(e)
P(negative 1.4−1.4less than or equals≤Zless than or
equals≤1.11.1)
(c)
P(StartAbsoluteValue Upper Z EndAbsoluteValueZless
than<1.61.6)

Find the following z values for the standard normal
variable Z. (You may find it
useful to reference the
z table.Negative values should be
indicated by a minus sign. Round your answers to 3 decimal
places.)
a.
P(Z ≤ z)
= 0.1022
b.
P(z ≤ Z ≤
0) = 0.1641
c.
P(Z > z ) = 0.9719
d.
P(0.29 ≤ Z ≤ z) = 0.3777

Find the probabilities associated with the standard normal
random variable Z:
a) P (Z> 2.54)
b) P (-3.2 <Z <3.2)
c) P (Z <1.94)
d) P (Z> 2.88)
e) P (Z> 3.15)

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