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Annette [7]
3 years ago
13

1. Determine whether or not each of the following is a Binomial random variable. If it is not a Binomial random variable, provid

e a short explanation. a) You roll a die 25 times. Let X be the number of times that you roll "3". b) The SJSU football team will play 12 games next season. They have a 70% chance of winning each conference game and a 60% chance of winning each nonconference game. Let X be the number of games the SJSU football team wins next season. c) Evelyn has a 75% chance of getting an A in each class she takes. Let X be the number of times Evelyn earns an A during four years at SJSU.
Mathematics
1 answer:
satela [25.4K]3 years ago
8 0

Answer:

a) You roll a die 25 times. Let X be the number of times that you roll "3".

* Is a Binomial

b) The SJSU football team will play 12 games next season. They have a 70% chance of winning each conference game and a 60% chance of winning each nonconference game. Let X be the number of games the SJSU football team wins next season.

* Not a Binomial because probability of success is not constant

c) Evelyn has a 75% chance of getting an A in each class she takes. Let X be the number of times Evelyn earns an A during four years at SJSU.

* Is a Binomial

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2 years ago
show the sample space of a toss of two dice as a list denote the event of a sum of 3 or 6 or 9 on the list
Ratling [72]
The sample space is:
(1, 1); (1, 2) - sum of 3; (1, 3); (1, 4); (1, 5) - sum of 6; (1, 6);
(2, 1) - sum of 3; (2, 2); (2, 3); (2, 4) - sum of 6; (2, 5); (2, 6);
(3, 1); (3, 2); (3, 3) - sum of 6; (3, 4); (3, 5); (3, 6) - sum of 9;
(4, 1); (4, 2) - sum of 6; (4, 3); (4, 4); (4, 5) - sum of 9; (4, 6);
(5, 1) - sum of 6; (5, 2); (5, 3); (5, 4) - sum of 9; (5, 5); (5, 6);
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4 0
3 years ago
It takes 40 minutes for 8 people to paint 4 walls. How many minutes does it take 19people to paint 7 walls?
Slav-nsk [51]
Hey hey!


56 would be the answer.

WAIT, don’t leave just yet! You have to show at least some work! You CANT learn if you don’t know what you’re doing.

Here’s how I got the answer:

7:4 walls = 10:8 people =M:40 minutes
M = (7/4) / (10/8) x 40
M = 56 minutes.

If that helped let me know by hitting the thanks button or reply with any help you need.

Have a FABULOUS DAYYY!


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In a class 1/6 of a children are girls there are five girls in the class how many boys are there in the class
Alika [10]
<h2>Hope it is helpfully.</h2><h3>Have a nice day.</h3>

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Multiply and write in standard form:<br> (2x)(x^2 - 6x + 3)<br> Show all work for full credit.
Mashcka [7]

2x(x2-6x+3)

4x^3-12x^2+6x

3 0
2 years ago
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