Question
In: Statistics and Probability
Perform each task, given the following sample data. (Round your answers to one decimal place.) 7...
Perform each task, given the following sample data. (Round your answers to one decimal place.)
| 7 | 11 | 12 | 12 | 11 | 18 | 6 |
(a) Use the Sample Variance Definition to find the variance and standard deviation of the data.
| variance | |
| standard deviation |
(b) Use the Alternative Formula for Sample Variance to find the
variance and standard deviation of the data.
| variance | |
| standard deviation |
Solutions
orchestra answered 2 years agoRelated Solutions
Find the variance for the given sample data. Round your answer to one more decimal place...
Find the variance for the given sample data. Round your answer
to one more decimal place than the original data. 3) The weights
(in ounces) of 10 cookies are shown. 1.4 0.99 1.37 0.58 0.68 0.57
1.1 0.96 1.2 1.27
Find the mean for the following frequency tables. (Round your answers to one decimal place.) (a) ...
Find the mean for the following frequency tables. (Round your
answers to one decimal place.)
(a)
Grade
Frequency
49.5–59.5
2
59.5–69.5
3
69.5–79.5
6
79.5–89.5
14
89.5–99.5
5
(b)
Daily Low
Temperature
Frequency
49.5–59.5
50
59.5–69.5
30
69.5–79.5
15
79.5–89.5
1
89.5–99.5
0
(c)
Points per
Game
Frequency
49.5–59.5
14
59.5–69.5
32
69.5–79.5
15
79.5–89.5
21
89.5–99.5
2
Find the standard deviation of the following data. Round your answer to one decimal place. x...
Find the standard deviation of the following data. Round your
answer to one decimal place. x −6 −5 −4 −3 −2 −1 P(X=x) 0.1 0.1 0.3
0.1 0.1 0.3
Find the standard deviation of the following data. Round your answer to one decimal place. x...
Find the standard deviation of the following data. Round your
answer to one decimal place.
x
−5
−4
−3
−2
−1
0
P(X=x)
0.1
0.1
0.2
0.1
0.2
0.3
1. Find the standard variation of the following data. Round your answer to one decimal place....
1. Find the standard variation of the following data. Round your
answer to one decimal place.
2. find the value of P( X > 3)
3. find the value of P (X [less than or equal to] 7)
x
3
4
5
6
7
P(X=x)P(X=x)
0.2
0.2
0.1
0.2
0.3
Find the variance of the following data. Round your answer to one decimal place. x 3...
Find the variance of the following data. Round your answer to
one decimal place. x 3 4 5 6 7 8 P(X=x) 0.1 0.1 0.1 0.2 0.2 0.3
Find c such that each of the following is true. (Round your answers to two decimal...
Find c such that each of the following is true. (Round
your answers to two decimal places.)
(a) p(0 < z <
c) = 0.1349
c =
(b) p(c < z
< 0) = 0.4845
c =
(c) p(−c < z
< c) = 0.4640
c =
(d) p(z > c) =
0.6075
c =
(e) p(z > c) =
0.0531
c =
(f) p(z < c) =
0.1003
Find the standard normal area for each of the following (Round your answers to 4 decimal...
Find the standard normal area for each of the following (Round
your answers to 4 decimal places.): Standard normal area a. P( Z ≤
2.16) b. P(Z ≤ 3.05) c. P(Z ≤ 2.05) d. P(Z > 0.55)
Consider the following. (Give your answers correct to one decimal place.) (a) Find the critical value...
Consider the following. (Give your answers correct to one
decimal place.)
(a) Find the critical value χ2(17,
0.005).
(b) Find the critical value χ2(14, 0.10).
(c) Find the critical value χ2(22, 0.90).
(d) Find the critical value χ2(20, 0.975).
The following sample observations were randomly selected. (Round your answers to 2 decimal places.) X: 4...
The following sample observations were randomly selected.
(Round your answers to 2 decimal places.)
X:
4
5
3
6
10
Y:
9.8
10.6
8
15.4
19.6
a.
The regression equation is Yˆ Y^
= + X
b.
When X is 8 this gives Yˆ Y^ =
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