Question

Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the range, variance, and standard deviation for the sample data. Given that these are the top 10 salaries, do we know anything about the variation of salaries of TV personalities in general? 42 40 38 30 21 18 16 13 12.8 11.4 The range of the sample data is $nothing million. (Type an integer or a decimal.) The variance of the sample data is nothing . (Round to two decimal places as needed.) The standard deviation of the sample data is $nothing million. (Round to two decimal places as needed.) Is the standard deviation of the sample a good estimate of the variation of salaries of TV personalities in general?

Answer #1

Arrange the given data in ascending order

11.4 |

12.8 |

13 |

16 |

18 |

21 |

30 |

38 |

40 |

42 |

a)

Range = max - min

= 42 - 11.4

= 30.6

b)

first find the mean of the given data,

mean = sum/10 = 242.2/10 = 24.22

sum of squares = sum((x - xbar)^2) = ((11.4 - 24.22)^2 + (12.8 -
24.22)^2 + ....+ (11.4 - 24.22)^2 ) = 1325.716

Sample variance = sum of squares / (n -1)

variance = 1325.716/9 = 147.3018

= 147.30 (rounding to 2 decimal places)

x | (x-xbar)^2 |

11.4 | 164.3524 |

12.8 | 130.4164 |

13 | 125.8884 |

16 | 67.5684 |

18 | 38.6884 |

21 | 10.3684 |

30 | 33.4084 |

38 | 189.8884 |

40 | 249.0084 |

42 | 316.1284 |

c)

Sample standard deviation = sqrt(variance)

= sqrt(147.3018)

= 12.1368

= 12.14 (rounding to 2 decimal places)

Listed below are the top 10 annual salaries (in millions of
dollars) of TV personalities. Find the range, variance, and
standard deviation for the sample data. Given that these are the
top 10 salaries, do we know anything about the variation of
salaries of TV personalities in general?
4040
3939
3838
3030
1919
1616
1515
1414
13.913.9
12.712.7
The range of the sample data is
$27.327.3
million. (Type an integer or a decimal.)The variance of the
sample data is...

Listed below are the top 10 annual salaries (in millions of
dollars) of TV personalities. Find the range, variance, and
standard deviation for the sample data. Given that these are the
top 10 salaries, do we know anything about the variation of
salaries of TV personalities in general?
40
39
38
32
20
19
17
13
12.8
11.6
The range of the sample data is ________ million. (Type an
integer or a decimal.)
The variance of the sample data is...

Listed below are the top 10 annual salaries (in millions of
dollars) of TV personalities. Find the range, variance, and
standard deviation for the sample data. Given that these are the
top 10 salaries, do we know anything about the variation of
salaries of TV personalities in general?
41 39 38 31 20 18 16 15 14.6 14.0
The range of the sample data is $ nothing million. (Type an
integer or a decimal.)
The variance of the sample...

Listed below are the top 10 annual salaries (in millions of
dollars) of TV personalities. Find the range, variance, and
standard deviation for the sample data. Given that these are the
top 10 salaries, do we know anything about the variation of
salaries of TV personalities in general?
41 40 39 31 23 19 16 13 12.6 11.1
The range of the sample data is million. (Type an integer or
a decimal.)
The variance of the sample data is. (Round...

Listed below are the top 10 annual salaries (in
millions of dollars) of TV personalities. Find
the range, variance, and standard deviation for the sample
data. Given that these are the top 10 salaries, do we know
anything about the variation of salaries of TV personalities
in general?
41
40
39
33
24
23
22
18
17.6
16.1
The range of the sample data is
$
million. (Type an integer or a decimal.)
The variance of the sample data is
(Round to two...

Listed below are the top 10 annual salaries (in
millions of dollars) of TV personalities. Find the range, variance,
and standard deviation for the sample data. Given that these are
the top 10 salaries, do we know anything about the variation of
salaries of TV personalities in general?
40,38,36,30,22,21,19,17,16.6,15.1

Listed below are the top 10 annual salaries (in millions of
dollars) of TV personalities. Find the range, variance, and
standard deviation for the sample data. Given that these are the
top 10 salaries, do we know anything about the variation of
salaries of TV personalities in general?
39 37 36 30 20 18 17 16 15.8 14.3

listed below are the top 10 annual salaries (in
millions of dollars) of tv personalities. find the range, variance,
and standard deviation for the sample data. given that these are
the top 10 salaries, do we know anything about the variation of
salaries of the personalities in general?
41 40 38
32 21 17 15 12 11.9 11

Listed below are the top 10 annual salaries (in millions of
dollars) of TV personalities. Find the (a) mean, (b) median, (c)
mode, and (d) midrange for the given sample data in millions of
dollars. Given that these are the top 10salaries, do we know
anything about the salaries of TV personalities in general? Are
such top 10 lists valuable for gaining insight into the larger
population?
38.1
35.9
35
26
15.5
13.4
12
9.9
8.8
8.6
a. The mean...

Listed below are the top 10 annual salaries (in millions of
dollars) of TV personalities. Find the (a) mean, (b) median, (c)
mode, and (d) midrange for the given sample data in millions of
dollars. Given that these are the top 10 salaries, do we know
anything about the salaries of TV personalities in general? Are
such top 10 lists valuable for gaining insight into the larger
population?
38.9
35.5
35.8
27.5
14.4
13.5
12.4
9.6
10.2
7.6

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 4 minutes ago

asked 41 minutes ago

asked 46 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago