Free Exam: stat145-final exam-first term 31-32
Number of Questions in Test: 45
Number of Questions in Preview: 5
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[size=4]Let X be the number of serious cases accepted in an emergency Hospital section in one hour. The probability distribution of X is as follows
[/size]
[table][tr][td][size=4]x[/size][/td][td][size=4]0[/size][/td][td][size=4]1[/size][/td][td][size=4]2[/size][/td][td][size=4]3[/size][/td][/tr][tr][td][size=4]P(X=x)[/size][/td][td][size=4]0.3[/size][/td][td][size=4]0.5[/size][/td][td][size=4]0.15[/size][/td][td][size=4]k[/size][/td][/tr][/table]
[size=4]The value of k is:[/size]
[/size]
[table][tr][td][size=4]x[/size][/td][td][size=4]0[/size][/td][td][size=4]1[/size][/td][td][size=4]2[/size][/td][td][size=4]3[/size][/td][/tr][tr][td][size=4]P(X=x)[/size][/td][td][size=4]0.3[/size][/td][td][size=4]0.5[/size][/td][td][size=4]0.15[/size][/td][td][size=4]k[/size][/td][/tr][/table]
[size=4]The value of k is:[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 2
[size=4]Let X be the number of serious cases accepted in an emergency Hospital section in one hour. The probability distribution of X is as follows:[/size]
[table][tr][td][size=4]x[/size][/td][td][size=4]0[/size][/td][td][size=4]1[/size][/td][td][size=4]2[/size][/td][td][size=4]3[/size][/td][/tr][tr][td][size=4]P(X=x)[/size][/td][td][size=4]0.3[/size][/td][td][size=4]0.5[/size][/td][td][size=4]0.15[/size][/td][td][size=4]0.05[/size][/td][/tr][/table]
[size=4]The probability that P(X≤1) is:
[/size]
[table][tr][td][size=4]x[/size][/td][td][size=4]0[/size][/td][td][size=4]1[/size][/td][td][size=4]2[/size][/td][td][size=4]3[/size][/td][/tr][tr][td][size=4]P(X=x)[/size][/td][td][size=4]0.3[/size][/td][td][size=4]0.5[/size][/td][td][size=4]0.15[/size][/td][td][size=4]0.05[/size][/td][/tr][/table]
[size=4]The probability that P(X≤1) is:
[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 3
[size=4]You are given the following Data:9.5, 9, 8, 7, 8.5, and 10.[/size]
[size=4]The best measure of center is:
[/size]
[size=4]The best measure of center is:
[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 4
[size=4]You are given the following Data:9.5, 9, 8, 7, 8.5, and 10.
The mean of the data is[/size]
The mean of the data is[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 5
[size=4]You are given the following Data:9.5, 9, 8, 7, 8.5, and 10.
The median of the data is[/size]
The median of the data is[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |