Question

Which of the following is a characteristic of the
normal distribution?

A. The standard deviation equals to 0.

B. The mean equals to 1

C. The curve Is symmetrical

D. The bell curve is skewed

The normal distribution curve has the property of
being asymptotic; this means that .

A. The area under the curve is not skewed to the left

B. The curve is symmetrical

C. The area under the curve is not skewed to the right

D. The right and left tails they approach the horizontal axis but
their never touch

Answer #1

1) With a normal probability distribution curve, identify which
statement is false:
>all the possible probabilities are
under the curve.
>the area under the curve is
<1
>the left side is a mirror image of
the right side of the curve
>the probability that an item could
have 5 grams less weight and 5 grams more weight is the same.
2) Asymptotic is the term used to show that the tails of a
normal distribution:
...

Assume the random variable X is normally distributed with
mean
mu equals 50
and standard deviation
sigma equals 7
.
Compute the probability. Be sure to draw a normal curve with the
area corresponding to the probability shaded.
Upper P left parenthesis Upper X greater than 39 right
parenthesis
LOADING...
Click the icon to view a table of areas under the normal
curve.
Which of the following normal curves corresponds to
Upper P left parenthesis Upper X greater than 39...

Assume that the random variable X is normally distributed, with
mean mu equals 53 and standard deviation sigma equals 11. Compute
the probability. Be sure to draw a normal curve with the area
corresponding to the probability shaded. Upper P left parenthesis
Upper X less than or equals 40 right parenthesis Which of the
following shaded regions corresponds to Upper P left parenthesis
Upper X less than or equals 40 right parenthesis? A. X 4053 A
normal curve has a...

Assume that the random variable X is normally distributed, with
mean mu equals 53 and standard deviation sigma equals 11. Compute
the probability. Be sure to draw a normal curve with the area
corresponding to the probability shaded. Upper P left parenthesis
Upper X less than or equals 40 right parenthesis Which of the
following shaded regions corresponds to Upper P left parenthesis
Upper X less than or equals 40 right parenthesis? A. X 4053 A
normal curve has a...

Which of the following is a true statement regarding the
comparison of the standard normal distribution to the
t-distribution? I. The normal distribution is symmetrical whereas
the t-distribution is slightly skewed II. The greater the degrees
of freedom, the more the t-distribution resembles the standard
normal distribution. III. For small n, the t-distribution has wider
tails than the standard normal curve. a. I only b. II only c. III
only d. II and III e. All of the ab
ove

Assume the random variable X is normally distributed with mean
mu?equals=5050 and standard deviation sigma?equals=77. Compute the
probability. Be sure to draw a normal curve with the area
corresponding to the probability shaded. ?P(5757less than or
equals?Xless than or equals?6868?) Which of the following normal
curves corresponds to ?P(5757less than or equals?Xless than or
equals?6868?)? A. 575750506868 A normal curve has a horizontal axis
with three labeled coordinates, 50, 57, and 68. The curve's peak is
near the top of...

Find the area of the shaded region. The graph depicts the
standard normal distribution of bone density scores with mean 0 and
standard deviation 1. font size decreased by 2 z equals negative
0.93 font size decreased by 2 z equals 1.28 A symmetric bell-shaped
curve is plotted over a horizontal scale. Two vertical lines run
from the scale to the curve at labeled coordinates “z equals
negative 0.93,” which is to the left of the curve’s center and
peak,...

Which of the following is not a characteristic of the normal
probability distribution? a. The distribution is symmetrical b. The
standard deviation must be 1 c. The mean of the distribution can be
negative, zero, or positive d. The mean, median, and the mode are
equal
Correct Response b

Determine the total area under the standard normal curve in
parts (a) through (c) below.
a- Find the area under the normal curve to the left of z = -3
plus the area under the normal curve to the right of z = 3
the combined area under the normal curve to the right of z =
3_____
(b) Find the area under the normal curve to the left of z
equals=−1.52
plus the area under the normal curve to...

Determine the area under the standard normal curve that lies
between (a) Upper Z equals negative 0.85 and Upper Z equals 0.85,
(b) Upper Z equals negative 0.99 and Upper Z equals 0, and (c)
Upper Z equals negative 0.57 and Upper Z equals negative 0.46.
(a) Find the area under the normal curve to the left of
z = -3−3
plus the area under the normal curve to the right of
z = 3
The combined are =

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