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never [62]
3 years ago
7

According to a survey reported in the Business Week, 30% of adults in the U.S. said that the cell phone is the invention that th

ey hate most but cannot live without. If a random sample of 6 adults in the U.S. is selected, find the probability that at least 3 in the sample hold this opinion. (a) .1852 (b) .0595 (c) .0102 (d).0007 (e) .2556
Business
1 answer:
zalisa [80]3 years ago
5 0

Answer:

Explanation:

To calculate, the binomial distribution  formula can be applied

P(X)= nCx * Px * (1 - P)^(n - x)

Random sample of 6 adults:

P(X≥3) = P(X=3) + P(X=4) + P(X=5) + P(X=6)

(6 C 3​)0.30^3 * 0.7(6-3) + (6 C 4​)0.30^4* 0.7^(6-4) +(6 C 5​)0.30^5* 0.7^(6-5) + (6 C 6)0.30^6* 0.7^(6-6) =

0.1852+0.0595+0.0102+0.0007

= 0.2556

[6 C 3 = 6!/(6-3)!3! = 1*2*3*4*5*6/1*2*3*1*2*3, and to calculate others apply to this formula]

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3 years ago
What will happen if the current asset price is greater than the present value of income? Question 2 options: Buyers will bid the
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Answer:

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Explanation:

As the current asset price is greater than the present value of income, it is overpriced.

So, seller is much willing to sell at this price, however, buyers does not want to buy asset at this price as they only want to purchase it at the price equals to the present value of its income.

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3 years ago
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3 0
3 years ago
John, a line supervisor, has decided to increase Kerry's responsibilities by delegating more work to her station. what is the fi
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Option C: Notifying others is the responsibility of John and not Kerry. So this choice is invalid.

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7 0
3 years ago
Evidence by Blake, Elton, and Gruber indicates that, on average, actively managed bond funds ______. outperform passive fixed-in
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Answer:

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3 years ago
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