Assume a normal distribution and find the following
probabilities. (Round the values of z to 2 decimal places. Round
your answers to 4 decimal places.)
(a) P(x < 16 | μ = 20 and σ = 3)
(b) P(x ≥ 62 | μ = 50 and σ = 7)
(c) P(x > 43 | μ = 50 and σ = 5)
(d) P(16 < x < 21 | μ = 18 and σ = 3)
(e) P(x ≥ 73 |...
Assume a normal distribution and find the following
probabilities.
(Round the values of z to 2 decimal places. Round your
answers to 4 decimal places.)
(a) P(x < 17 | μ =
21 and σ = 3)
(b) P(x ≥ 72 | μ = 60
and σ = 9)
(c) P(x > 55 | μ =
60 and σ = 5)
(d) P(14 < x < 22 |
μ = 19 and σ = 3)
(e) P(x ≥ 93 |...
Assume a normal distribution and find the following
probabilities.
(Round the values of z to 2 decimal places. Round your
answers to 4 decimal places.)
(a) P(x < 25 | μ =
27 and σ = 3)
enter the probability of fewer than 25 outcomes if the mean is
27and the standard deviation is 3
(b) P(x ≥ 75 | μ = 60
and σ = 8)
enter the probability of 75or more outcomes if the mean is 60and
the...
Assume a normal distribution and find the following
probabilities.
(Round the values of z to 2 decimal places. Round your
answers to 4 decimal places.)
(a) P(x < 17 | μ =
20 and σ = 3)
enter the probability of fewer than 17 outcomes if the mean is 20
and the standard deviation is 3
(b) P(x ≥ 61 | μ = 50
and σ = 8)
enter the probability of 61 or more outcomes if the mean is...
Assume a normal distribution and find the following
probabilities. (Round the values of z to 2 decimal places. Round
your answers to 4 decimal places.)
(a) P(x < 18 | μ = 21 and σ = 4)
(b) P(x ≥ 43 | μ = 30 and σ = 8)
(c) P(x > 28 | μ = 30 and σ = 6)
(d) P(13 < x < 21 | μ = 19 and σ = 4)
(e) P(x ≥ 75 |...
Assume a normal distribution and find the following
probabilities. (Round the values of z to 2 decimal places. Round
your answers to 4 decimal places.) (a) P(x < 23 | μ = 26 and σ =
4) enter the probability of fewer than 23 outcomes if the mean is
26 and the standard deviation is 4 (b) P(x ≥ 42 | μ = 30 and σ = 7)
enter the probability of 42 or more outcomes if the mean is...
Assume a normal distribution and find the following
probabilities. (Round the values of z to 2 decimal places. Round
your answers to 4 decimal places.)
(a) P(x < 18 | μ = 22 and σ = 3)
(b) P(x ≥ 69 | μ = 50 and σ = 7)
(c) P(x > 43 | μ = 50 and σ = 5)
(d) P(18 < x < 22 | μ = 20 and σ = 3)
(e) P(x ≥ 96 |...
Find the following probabilities for a standard normal random
variable Z.
Note: Round your answers to four decimal places.
A) P(Z < -1.47)
B) P(Z > 2.20)
C) P(Z > -1.17)
D) P(Z < 1.30)
Find each of the probabilities where z is a z-score from a
standard normal distribution with
a mean of μ=0 and standard deviation σ=1. Make sure you
draw a picture of each problem. Show all steps
with TI 83
P(z < 2.15)
P(z > 0.71)
P(-1.45 <z < 2.17)
Compute the following probabilities using your calculator.
Assume Z is a standard normal random variable. Round all answers to
three decimal places.
A. P(0<Z<1.85)P(0<Z<1.85)=
B. P(−1.15<Z<0.3)=
C. P(Z>−1.3))=
D. P(0<Z<2.35)=
E. P(−1.85<Z<0.7)=
F. P(Z>−1.2)=
Suppose the random variable xx is best described by a normal
distribution with μ=29μ=29 and σ=3.4σ=3.4. Find the zz-score that
corresponds to each of the following xx values.
Round answers to three decimal places
(a) x=16.2
z=
(b) x=33.4
z=
(c) x=17.2
z=
(d) x=38.6
z=
Find the following probabilities...