Question

Consider the following data: x 5 6 7 8 9

P ( X = x ) 0.1 0.1 0.3 0.1 0.4

Answer #1

**Ans-**

**T**o find out
some information from this data we have construct this table-

x |
p(X=x) |
x.p(X=x) |
x^2p(X=x) |

5 | 0.1 | 0.5 | 2.5 |

6 | 0.1 | 0.6 | 3.6 |

7 | 0.3 | 2.1 | 14.7 |

8 | 0.1 | 0.8 | 6.4 |

9 | 0.4 | 3.6 | 32.4 |

7.6 |
59.6 |

now the mean for the given data

E(X) =7.6 = mean

Variance(X) = 59.6 - 7.6 =52

Note - If you need more information comment below, there is not mention particular problem.

Consider the following
data:
x
5
6
7
8
9
P(X=x)P(X=x)
0.30.3
0.1
0.1
0.3
0.2
Copy Data
Step 2 of 5 :
Find the variance.
Round your answer to one decimal place.

7. Consider the following data:
x 6 7 8 9 10
P( X = x ) 0.3 0.1 0.2 0.1 0.3
Step 1 of 5: Find the expected value E(X) E ( X ) . Round your
answer to one decimal place.
Step 2 of 5: Find the variance. Round your answer to one decimal
place.
Step 3 of 5: Find the standard deviation. Round your answer to
one decimal place.
Step 4 of 5: Find the value of P(X<9)P(X<9)....

Consider the following data:
x
4
5
6
7
8
P(X=x)
0.2
0.2
0.1
0.2
0.3
Step 3 of 5 :
Find the standard deviation. Round your answer to one decimal
place.

Consider the following data:
x
4
5
6
7
8
P(X=x)
0.1
0.1
0.2
0.2
0.4
Find the variance. Round your answer to one decimal place.
Find the standard deviation. Round your answer to one decimal
place.
Find the value of P(X<5). Round your answer to one decimal
place.
Find the value of P(X>7). Round your answer to one decimal
place.

Consider the following data:
x
4
5
6
7
8
P(X=x)
0.3
0.2
0.1
0.1
0.3
Step 1 of 5 :
Find the expected value E(X). Round your answer to one decimal
place.
Step 2 of 5:
Find the variance. Round your answer to one decimal place.
Step 3 of 5:
Find the standard deviation. Round your answer to one decimal
place.
Step 4 of 5:
Find the value of P(X>4). Round your answer to one decimal
place.
Step 5...

Consider the following data:
x
4
5
6
7
8
P(X=x)
0.2
0.2
0.1
0.2
0.3
Copy Data
Step 1 of 5:
Find the expected value E(X). Round your answer to one decimal
place.
Step 2 of 5:
Find the variance. Round your answer to one decimal place.
Step 3 of 5:
Find the standard deviation. Round your answer to one decimal
place.
Step 4 of 5:
Find the value of P(X≤8). Round your answer to one decimal
place.
Step...

Consider the following data:
x 4 5 6 7 8
P(X=x) 0.1 0.2 0.2 0.3 0.2
Step 1 of 5: Find the expected value E(X). Round your answer to
one decimal place.
Step 2 of 5: Find the variance. Round your answer to one decimal
place.
Step 3 of 5: Find the standard deviation. Round your answer to
one decimal place.
Step 4 of 5: Find the value of P(X>4). Round your answer to
one decimal place.
Step 5 of...

Consider the following data: 6, 8, 2, 3, 4, 4, 5, 5, 9, 6, 6, 7,
7 ,7, 7, 8, 8, 8, 8, 9, 9.
What type of distribution is this?

Consider the following data:
x
−7
−6
−5
−4
−3
P(X=x)
0.2
0.1
0.2
0.2
0.3
Copy Data
Step 1 of 5:
Find the expected value E(X). Round your answer to one decimal
place.
Step 2 of 5:
Find the variance. Round your answer to one decimal place.
Step 3 of 5:
Find the standard deviation. Round your answer to one decimal
place.
Step 4 of 5:
Find the value of P(X>−5). Round your answer to one decimal
place.
Step...

Consider the following data:
x
2
3
4
5
6
P(X=x)
0.3
0.2
0.2
0.1
0.2
Step 1 of 5 : Find the expected value E(X). Round your answer to
one decimal place.

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