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asambeis [7]
2 years ago
11

I need help with solutions

Mathematics
1 answer:
MAVERICK [17]2 years ago
6 0

Answer:

10. b 11. b 12. b 13. a 14. b 15. b 16. a 17. a 18. b 19. a 20. a 21. b

Step-by-step explanation:

I'm pretty sure they are all right

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The Orchard Cafe has found that about 3% of the diners who make reservations don't show up. If 83 reservations have been made, h
daser333 [38]

Answer:

\mu = 80.51\\\sigma = 1.56

Step-by-step explanation:

We are given the following information in the question:

Percentage of of the diners who make reservations don't show up = 3%

Number of reservations = 83

Thus, we are given a binomial distribution with n = 83 and p = 0.97

X\sim \text{ Binom}(p = 0.97, n = 83)

\mu = np = (83)(0.97) = 80.51

Around 81 people  can be expected to show up.

\sigma = \sqrt{np(1-p)} = \sqrt{(83)(0.97)(1-0.97)} = 1.5541 \approx 1.56

The standard deviation of this distribution is 1.56

6 0
3 years ago
The cost of a bagel and a cup of coffee is $1.45. The cost of 3 bagels and a cup of coffee is $2.95. What is the cost of a cup o
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8 0
3 years ago
2 Question help
Travka [436]

Step-by-step explanation:

60 divided by 7 = approx. 8-9 min for each task.

7 tasks per hour

5 0
3 years ago
Read 2 more answers
Please help with the question above :)!!! ^^
zhannawk [14.2K]
(-1,-9) because if we substituted 1 into x y would be 9 and if we substituted 1/2 into x y would be 3 but if we substituted -1 into x y would be 1/9 so therefore that value is incorrect

7 0
3 years ago
These two pygons are similar. Z=what
marta [7]

Answer:

I am not 100% about this, but I think that Z=46 Y=30 and X=45

Step-by-step explanation:

7 0
3 years ago
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