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Dafna1 [17]
3 years ago
12

Does a polygon usually have more sides or more angles

Mathematics
1 answer:
fredd [130]3 years ago
8 0
A polygon always has an equal amount of sides and angles :)
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A financial analyst wanted to estimate the mean annual return on mutual funds. A random sample of funds' returns shows an averag
Feliz [49]

A financial analyst wanted to estimate the mean annual return on mutual funds. A random sample of 60 funds' returns shows an average rate of 12%. If the population standard deviation is assumed to be 4%, the 95% confidence interval estimate for the annual return on all mutual funds is

A. 0.037773 to 0.202227

B. 3.7773% to 20.2227%

C. 59.98786% to 61.01214%

D. 51.7773% to 68.2227%

E. 10.988% to 13.012%

Answer: E. 10.988% to 13.012%

Step-by-step explanation:

Given;

Mean x= 12%

Standard deviation r = 4%

Number of samples tested n = 60

Confidence interval is 95%

Z' = t(0.025)= 1.96

Confidence interval = x +/- Z'(r/√n)

= 12% +/- 1.96(4%/√60)

= 12% +/- 0.01214%

Confidence interval= (10.988% to 13.012%)

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3 years ago
I need help with this question
mr Goodwill [35]

Answer:

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Step-by-step explanation:

5 0
3 years ago
jan, mya, and sara ran a total of 64 miles last week. jan and mya ran the same number of miles. sara ran 8 less miles than jan a
kherson [118]
x-\ Jan's\ destination\\\\y-\ Mya's \ destination \\\\ z-\ Sara's\ destination\\\\\
x+y+z=64\\
x=y\\
z-8=2x\\\\
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4x+8=64\\\\
4x=64-8\\\\
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Mashutka [201]

Answer:1/4

Step-by-step explanation:

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3 years ago
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timama [110]

Answer:

hahahhaa thanks

Step-by-step explanation:

ahahahhahahad

5 0
2 years ago
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