Question

1. If a z score is found to be 0.7, what is the resulting probability IN THE RIGHT TAIL, please round 4 decimal places.

2. If a z score is found to be 0.08, what is the resulting probability IN THE NON-TAIL? please round 4 decimal places.

3. If a probability or area is found to be 0.3024, what is the z score. round 2 places decimal places

4. If a probability or area is found to be 0.8099, what is the z score, round 2 decimal places.

5. If a z score is found to be -2.01 , what is the resulting probability IN THE LEFT TAIL? round 4 decimal places

Answer #1

1) P( X > 0.7 ) = 0.241964.

0.2420

R code should be:

pnorm(q=0.7, mean=0, sd=1, lower.tail=TRUE, log.p = FALSE)

dnorm (x=0.7, mean=0, sd=1)

2) P( X ≤ 0.08 ) = 0.531881.

0.5319

R code should be:

pnorm(q=0.08, mean=0, sd=1, lower.tail=TRUE, log.p = FALSE)

dnorm (x=0.08, mean=0, sd=1)

3) P( X ≤ -0.51751 ) = 0.3024

-0.52

R code should be:

qnorm(p=0.3024, mean=0, sd=1, lower.tail=TRUE, log.p = FALSE)

dnorm (x=-0.51751, mean=0, sd=1)

4) P( X ≤ 0.877528 ) = 0.8099.

0.88

R code should be:

qnorm(p=0.8099, mean=0, sd=1, lower.tail=TRUE, log.p = FALSE)

dnorm (x=0.877528, mean=0, sd=1)

5) P( X ≤ -2.01 ) = 0.0222156.

0.0222

R code should be:

pnorm(q=-2.01, mean=0, sd=1, lower.tail=TRUE, log.p = FALSE)

dnorm (x=-2.01, mean=0, sd=1)

please like ??

Write only a number as your answer. Round to two decimal
places.
1.) Find the z-score for which the area to its right is
0.45.
2.) Find the z-score for which the area to its left is 0.58.
3.) Find the z-score for which the area to its right is
0.49.
4.) Find the z-score for which the area to its left is 0.40.

1.) Between z=0 and z=-0.32 please give answer in a percent
2.) Between z=0 and z=-0.32 please give answer 4 decimal
places
3.) To the right of z=2.01 please give answer 4 decimal
place

use
the standard normla table to find the z-score thag corresponds to
tbe given percentile . if the area is not in the table use the
entry closest to the area . if the area is halfway between two
entries use the z-score halfway between the corresponding z-scores
1. the z-score that corresponds to P80 is ??
(round to two decimal places as needed)
find the z -score that has 97.5% of the distribution's area to
its left
1. the...

What is the z-score for the probability of 0.0436?
z-score =
Using this z-score and a mean value of 71 and a standard
deviation of 5, find the x value that has this probability.
x =

A. Calculate the probability that a randomly selected z-score is
less than 1.56. (Round to four decimal places.)
B. Calculate the probability that a randomly selected z-score is
greater than 2.38. (Round to four decimal places.)
C. Calculate the probability that a randomly selected z-score is
less than -0.76. (Round to four decimal places.)
D.Calculate the probability that a randomly selected z-score is
greater than -1.11. (Round to four decimal places.)
E. Calculate the probability that a randomly selected z-score...

1)A normal distribution has μ = 24 and σ =
5.
(a) Find the z score corresponding to
x = 19.
(b) Find the z score corresponding to
x = 35.
(c) Find the raw score corresponding to
z = −2.
(d) Find the raw score corresponding to
z = 1.7.
2)Sketch the area under the standard normal curve over the
indicated interval and find the specified area. (Round your answer
to four decimal places.)
The area to the left...

1. What z-score value separates 20% of the distribution in the
tail on the left (i.e., the bottom 20% of the distribution) from
the rest of the distribution?
2. What z-score value separates 40% of the distribution in the
tail on the right (i.e., the top 40% of the distribution) from the
rest of the distribution?
3. IQ scores are standardized to produce a normal
distribution with a mean of µ = 100 and a standard deviation of σ =...

1. Let x be a continuous random variable. What is the
probability that x assumes a single value, such as a (use numerical
value)?
2. The following are the three main characteristics of a normal
distribution.
The total area under a normal curve equals _____.
A normal curve is ___________ about the mean. Consequently, 50%
of the total area under a normal distribution curve lies on the
left side of the mean, and 50% lies on the right side of...

Find the value of the probability of the standard normal
variable Z corresponding to the shaded area under the standard
normal curve. (Round your answer to four decimal places) 1. P(Z
> 1.25) 2. P(0.7 < Z < 1.55) 3. P(0.55 < Z <
1.63)

Please answer the questions below
1. Find the z-score that has 48.8% of the distribution's area
to its left?
2. Find the z-scores for which 5% of the distribution's area
lies between minus−z and z?
3. Find the indicated area under the standard normal curve.
Between z=0 and z=1.34 The area between
z=0 and z=1.34 under the standard normal curve is?

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 21 minutes ago

asked 26 minutes ago

asked 26 minutes ago

asked 44 minutes ago

asked 44 minutes ago

asked 57 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago