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3 years ago

Please help due today!

Mathematics

1 answer:

Hunter-Best [27]3 years ago

8 0

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Below are the jersey numbers of 11 players randomly selected from a football team. Find the range, variance, and standard deviat

Aleksandr-060686 [28]

Answer:

Range = 71

Variance = 546.0

Standard Deviation = 23.4

Option A) Jersey numbers are nominal data that are just replacements for names, so the resulting statistics are meaningless.

Step-by-step explanation:

We are given the following data set in the question:

33, 29, 97, 56, 26, 78, 83, 74, 65, 47, 58

Formula:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

$\text{Variance} = \displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{646}{11} = 58.7$

Sum of squares of differences = 5460.18

$\text{Variance} = \frac{5460.18}{11} = 546.0$

$S.D = \sqrt{\frac{5460.18}{10}} = 23.4$

Sorted Data Set: 26, 29, 33, 47, 56, 58, 65, 74, 78, 83, 97

Range = Maximum - Minimum

Range = 97 - 26 = 71

Based on the values, we can say that

Option A) Jersey numbers are nominal data that are just replacements for names, so the resulting statistics are meaningless.

6 0

3 years ago

Need help ASAP!!!!!!

Sergeu [11.5K]

Input Data :

Point 1 ( x A , y A ) = (-6, -2)

Point 2 ( x B , y B ) = (1, -6)

Objective :

Find the distance between two given points on a line.

Formula :

Distance between two points = √ ( x B − x A )2 + ( y B − y A ) 2

Solution :

Distance between two points = √ ( 1 - -6 ) 2 + ( − 6 − − 2 ) 2

= √ 7 2 + ( − 4 ) 2

= √ 49 + 16

= √ 65 = 8.0623

Distance between points (-6, -2) and (1, -6) is 8.0623

Or 8!!

Best of luck!!

#readmore

8 0

3 years ago

Please help I really need it on this one thank you

Bond [772]

(-7) * 8 = -56

answer
A. -56

hope it helps

7 0

3 years ago

So is 80 kilometers bigger than 1000 meters

Sergeu [11.5K]

80 kilometers is equal to 80,000 meters. This is greater than 1000 meters.

3 0

2 years ago

Read 2 more answers

I forget how to turn fractions into percent

Illusion [34]

<span>Divide the top of the fraction by the bottom,t<span>hen multiply your answer by 100</span></span>

3 0

3 years ago