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Setler [38]
2 years ago
15

In a large city, 46% of adults support the local football team building a new stadium. If a poll is taken from a random sample o

f 80 adults in the large city, which of the following properly describes the sampling distribution of the sample proportion of adults who support the stadium?*
Mathematics
1 answer:
Sveta_85 [38]2 years ago
7 0

Answer: 0.46, 0.056, the distribution is approximately normal

Step-by-step explanation: The shape is approximately normal since the expected number of successes equals 36.8 and the expected number of failures equals 43.2 are both larger than 10

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Compute i^1+i^2+i^3....i^99+i^100
fgiga [73]

Good morning ☕️

Answer:

<h3>i¹ + i² + i³ +. . .+ i⁹⁹ + i¹⁰⁰ = 0</h3>

Step-by-step explanation:

Consider the sum S = i¹ + i² + i³ +. . .+ i⁹⁹ + i¹⁰⁰

S =  i¹ +  i² +  i³ + . . . + i⁹⁹  +  i¹⁰⁰

S = a₁ + a₂ + a₃ +. . . + a₉₉ + a₁₀₀

then, S is the sum of 100 consecutive terms of a geometric sequence (an)

where the first term a1 = i¹ = i  and the common ratio = i

FORMULA:______________________

S=(term1)*\frac{1-(common.ratio)^{number.of.terms}}{1-(common.ratio)}

_______________________________

then

S=i*\frac{1-i^{100} }{1-i}

or i¹⁰⁰ = (i⁴)²⁵ = 1²⁵ = 1  (we know that i⁴ = 1)

Hence

S = 0

7 0
2 years ago
Tamara says that raising the number i to any integer power results in either -1 or 1 as the result, since i^2 = -1. Do you agree
Roman55 [17]
I agree only if you have even powers -- even negative ones.

1/i^2 = 1/-1 = - 1
i^0 also gives 1 So far no problem.

It is when you consider the odd numbers that you don't get 1 or -1 
You get either -i or i
i^(4n + 1) =  i
i^(4n - 1) = -i

5 0
2 years ago
A poll shows that 60% of students enjoy mathematics. A random sample of 25 students showed that 80% of them enjoy mathematics. A
Valentin [98]

Answer:

50 chance

Step-by-step explanation:

3 0
1 year ago
Read 2 more answers
Leo's townhouse has a market value of $310,000. The property in Leo's area is assessed at 40% of the market value. The tax rate
miss Akunina [59]
Market value = $310,000

Since market value for tax purposes is 40% of the actual market value, 

Market value for tax assessment = $310,000*40%  = $124,000

Tax rate per $1000 of assessed valuation = $145.10  or 14.51% of the assessed value

Hence tax to be paid by leo = $124000*14.51% = $17992.40
3 0
2 years ago
Tomas is a commercial real estate agent who earns a yearly salary of $82,500 and a 2.5% commission on his total sales. If Tomas
Georgia [21]
Tomas earning is $176,250
7 0
1 year ago
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