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Romashka-Z-Leto [24]
3 years ago
8

The Australian Open is the first of the four Grand Slam professional tennis events held each year. Victoria Azarenka beat Maria

Sharapova to win the 2012 Australian Open women’s title. During the tournament Ms. Azarenka serve speed reached kilometers per hour. A list of the Women’s Singles serve speed for the 2012 Australian Open is provided below. Player Serve Speed (km/h) S. Williams 192 S. Lisicki 192 M. Keys 191 L. Hradecka 188 J. Gajdosova 187 J. Hampton 187 B. Mattek-Sands 185 F. Schiavone 185 P. Ormaechea 185 P. Parmentier 185 N. Petrova 183 G. Arn 183 V. Azarenka 182 A. Ivanovic 182 P. Kvitova 179 M. Krajicek 179 V. Dushevina 178 S. Stosur 176 S. Cirstea 176 M. Barthel 175
a. Compute the mean, variance, and standard deviation for the serve speeds.

b. A similar sample of the 20 Women’s Singles serve speed leaders for the 2011 Wimbledon tournament showed a sample mean serve speed of 182.5 kilometers per hour. The variance and standard deviation were 33.3 and 5.77, respectively. Discuss any difference between the serve speeds in the Australian Open and the Wimbledon women’s tournaments.
Mathematics
1 answer:
klasskru [66]3 years ago
5 0

Answer:

asnwer is B

Step-by-step explanation:

mark BRAINLIEST

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Zielflug [23.3K]

Answer:

$395.83

Step-by-step explanation:

to solve, we first need to subtract what we already have, first the scholarship, wich is a set amount being taken from the original amount

12'000 - 2'500 = 9'500

now we have the second subtracting factor, but this one isn't set in stone and defined, it is half of the amount his parents will pay, so what we can do is divide what we have by two, wich will give us 2 halves

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now all we have to do is divide again but this time for each month that Daniel needs to save up in, in this case 12

4'750 / 12 = 395.83 (note1)

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3 years ago
Conceptual Set 1. The same researcher wants to then compare the final (time 2) levels of anger in this experimental group to a c
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Answer:

I

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2 years ago
Nora's leaf collection consisted of 150 leaves by August. By december , her collection had grown to 177 leaves. How much did her
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Answer=18%

177/150=1.18

1.18=118%

118%-100%=18%

___________________________
another way to solve the equation...

  150     177
_____=_____
100%      x

Cross Multiply
150x=17700
divide both sides by 150
x=118%

118%-100%=18%
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3 years ago
Read 2 more answers
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