Question
In: Statistics and Probability
For a standard normal distribution, determine the probabilities in parts a through d below. Click here...
For a standard normal distribution, determine the probabilities in parts a through d below.
Click here to view page 1 of the standard normal probability table.
LOADING...
Click here to view page 2 of the standard normal probability table.
LOADING...
a. Find
P(zless than or equals≤1.561.56).
P(zless than or equals≤1.561.56)equals=nothing
(Round to four decimal places as needed.)
b. Find
P(zless than or equals≤negative 1.28−1.28).
P(zless than or equals≤negative 1.28−1.28)equals=nothing
(Round to four decimal places as needed.)
c. Find
P(negative 0.84−0.84less than or equals≤zless than or equals≤1.791.79).
P(negative 0.84−0.84less than or equals≤zless than or equals≤1.791.79)equals=nothing
(Round to four decimal places as needed.)
d. Find
P(0.340.34less than or equals≤zless than or equals≤2.172.17).
P(0.340.34less than or equals≤zless than or equals≤2.172.17)equals=nothing
Solutions
Expert Solution
The solution is done showing all steps with calculations and required fomulas. For better understanding, a z-table is also attached. Hope you can understand.
z-table -
orchestra answered 1 year agoRelated Solutions
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a. Find P(z ). ?1.59
P(z ) ?1.59 = (Round to four decimal places as needed.)
b. Find P(z ). ? ?1.21
P(z ) ? ?1.21 = (Round to four decimal places as needed.)
c. Find P( z ). ?0.83? ?1.78
P( z ) ?0.83? ?1.78 = (Round to four decimal places as
needed.)
d. Find P( z ). 0.33? ?2.19
P( z ) 0.33? ?2.19...
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Determine the total area under the standard normal curve in
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for a standardized normal distribution, calculate the
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Given a normal distribution with 100 and 5-10, complete parts (a) through (d)
Given a normal distribution with 100 and 5-10, complete parts (a) through (d). a. What is the probability that X > 95? The probability that X> 95 is _______ b. What is the probability that X< 85? The probability that X < 85 is _______ c. What is the probability that X < 75 or X> 115? The probability that X < 75 or X> 115 is _______ d. 90% of the values are between what two X-values (symmetrically distributed around the mean)? 90%...
Consider the following contingency table of observed frequencies. Complete parts a. through d. below. Click the...
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Click the icon to view the contingency table.
Column Variable
Row Variable C1 C2 C3
R1 11 9 12
R2 11 6 6
a. Identify the null and alternative hypotheses for a
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A. H0: The...
Given a normal distribution with μ = 100 and σ=10, complete parts (a) through (d). a....
Given a normal distribution with μ = 100 and σ=10,
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a. What is the probability that X > 95?
The probability that X > 95 is ___.
(Round to four decimal places as needed.)
b. What is the probability that X < 75?
The probability that X < 75 is ___.
(Round to four decimal places as needed.)
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15. How is the standard normal distribution used to compute normal probabilities?
15. How is the standard normal distribution used to
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The probability distribution of number of dogs per household in
a small town
Dogs
0
1
2
3
4
5
Households
0.6730.673
0.2010.201
0.0760.076
0.0250.025
0.0170.017
0.0080.008
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0.8740.874
(Round to three decimal places as needed.)
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0.3270.327
(Round...
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decimal places as needed.)
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(Round to four decimal places as needed.)
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(Round to four decimal places as needed.)
c.For this distribution, 5% of the values are
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X =
(Round to the nearest integer as needed.)
d. Between what two X-values (symmetrically
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